From 39c3961666d989c63ab3e541dd3c23633ebee01a Mon Sep 17 00:00:00 2001
From: Manabu Niseki <manabu.niseki@gmail.com>
Date: Sat, 27 Jan 2024 17:06:32 +0900
Subject: [PATCH] refactor: simplify RuboCop & Standard config

---
 .rubocop.yml                                  |  4 --
 .standard.yml                                 |  4 --
 lib/mihari.rb                                 |  2 +-
 lib/mihari/analyzers/base.rb                  |  2 +-
 lib/mihari/analyzers/binaryedge.rb            | 10 ++--
 lib/mihari/analyzers/censys.rb                | 12 ++---
 lib/mihari/analyzers/circl.rb                 |  4 +-
 lib/mihari/analyzers/crtsh.rb                 |  6 +--
 lib/mihari/analyzers/dnstwister.rb            |  4 +-
 lib/mihari/analyzers/feed.rb                  | 30 +++++-------
 lib/mihari/analyzers/fofa.rb                  | 12 ++---
 lib/mihari/analyzers/greynoise.rb             | 10 ++--
 lib/mihari/analyzers/hunterhow.rb             |  8 ++--
 lib/mihari/analyzers/onyphe.rb                | 10 ++--
 lib/mihari/analyzers/otx.rb                   |  4 +-
 lib/mihari/analyzers/passivetotal.rb          |  6 +--
 lib/mihari/analyzers/pulsedive.rb             |  6 +--
 lib/mihari/analyzers/securitytrails.rb        |  8 ++--
 lib/mihari/analyzers/shodan.rb                | 10 ++--
 lib/mihari/analyzers/urlscan.rb               | 10 ++--
 lib/mihari/analyzers/virustotal.rb            |  8 ++--
 .../analyzers/virustotal_intelligence.rb      | 10 ++--
 lib/mihari/analyzers/zoomeye.rb               | 10 ++--
 lib/mihari/cli/application.rb                 |  2 +-
 lib/mihari/clients/base.rb                    | 10 ++--
 lib/mihari/clients/binaryedge.rb              | 12 ++---
 lib/mihari/clients/censys.rb                  |  8 ++--
 lib/mihari/clients/circl.rb                   |  4 +-
 lib/mihari/clients/crtsh.rb                   |  4 +-
 lib/mihari/clients/dnstwister.rb              |  2 +-
 lib/mihari/clients/fofa.rb                    |  8 ++--
 lib/mihari/clients/google_public_dns.rb       |  4 +-
 lib/mihari/clients/greynoise.rb               |  8 ++--
 lib/mihari/clients/hunterhow.rb               | 20 ++++----
 lib/mihari/clients/misp.rb                    |  2 +-
 lib/mihari/clients/mmdb.rb                    |  2 +-
 lib/mihari/clients/onyphe.rb                  |  8 ++--
 lib/mihari/clients/otx.rb                     |  2 +-
 lib/mihari/clients/passivetotal.rb            | 10 ++--
 lib/mihari/clients/publsedive.rb              |  6 +--
 lib/mihari/clients/securitytrails.rb          | 12 ++---
 lib/mihari/clients/shodan.rb                  | 12 ++---
 lib/mihari/clients/shodan_internet_db.rb      |  2 +-
 lib/mihari/clients/the_hive.rb                |  4 +-
 lib/mihari/clients/urlscan.rb                 |  8 ++--
 lib/mihari/clients/virustotal.rb              |  8 ++--
 lib/mihari/clients/zoomeye.rb                 | 24 +++++-----
 lib/mihari/commands/alert.rb                  |  2 +-
 lib/mihari/commands/artifact.rb               |  2 +-
 lib/mihari/commands/rule.rb                   |  2 +-
 lib/mihari/commands/tag.rb                    |  2 +-
 lib/mihari/concerns/configurable.rb           |  2 +-
 lib/mihari/concerns/retriable.rb              |  2 +-
 lib/mihari/constants.rb                       |  4 +-
 lib/mihari/emitters/base.rb                   |  2 +-
 lib/mihari/emitters/database.rb               |  2 +-
 lib/mihari/emitters/misp.rb                   |  8 ++--
 lib/mihari/emitters/slack.rb                  | 18 +++----
 lib/mihari/emitters/the_hive.rb               |  4 +-
 lib/mihari/emitters/webhook.rb                |  8 ++--
 lib/mihari/enrichers/base.rb                  |  2 +-
 lib/mihari/enrichers/google_public_dns.rb     |  2 +-
 lib/mihari/enrichers/mmdb.rb                  |  2 +-
 lib/mihari/enrichers/shodan.rb                |  6 +--
 lib/mihari/enrichers/whois.rb                 |  4 +-
 lib/mihari/entities/alert.rb                  | 12 ++---
 lib/mihari/entities/artifact.rb               | 34 ++++++-------
 lib/mihari/entities/autonomous_system.rb      |  2 +-
 lib/mihari/entities/config.rb                 |  8 ++--
 lib/mihari/entities/cpe.rb                    |  4 +-
 lib/mihari/entities/dns.rb                    |  6 +--
 lib/mihari/entities/geolocation.rb            |  6 +--
 lib/mihari/entities/ip_address.rb             |  6 +--
 lib/mihari/entities/messages.rb               |  6 +--
 lib/mihari/entities/pagination.rb             |  6 +--
 lib/mihari/entities/port.rb                   |  4 +-
 lib/mihari/entities/reverse_dns.rb            |  4 +-
 lib/mihari/entities/rule.rb                   | 16 +++----
 lib/mihari/entities/tag.rb                    |  6 +--
 lib/mihari/entities/vulnerability.rb          |  4 +-
 lib/mihari/entities/whois.rb                  | 14 +++---
 lib/mihari/errors.rb                          |  2 +-
 lib/mihari/models/artifact.rb                 |  4 +-
 lib/mihari/models/port.rb                     |  2 +-
 lib/mihari/rule.rb                            | 24 ++++------
 lib/mihari/services/feed.rb                   |  6 +--
 lib/mihari/services/proxies.rb                |  2 +-
 lib/mihari/services/renderer.rb               |  2 +
 lib/mihari/services/searchers.rb              |  2 +-
 lib/mihari/sidekiq/application.rb             |  4 +-
 lib/mihari/structs/censys.rb                  |  8 ++--
 lib/mihari/structs/google_public_dns.rb       |  6 +--
 lib/mihari/structs/greynoise.rb               |  4 +-
 lib/mihari/structs/onyphe.rb                  |  6 +--
 lib/mihari/structs/shodan.rb                  | 20 ++++----
 lib/mihari/structs/urlscan.rb                 |  2 +-
 lib/mihari/structs/virustotal_intelligence.rb |  4 +-
 lib/mihari/web/api.rb                         |  2 +-
 lib/mihari/web/application.rb                 |  2 +-
 lib/mihari/web/endpoints/alerts.rb            | 24 +++++-----
 lib/mihari/web/endpoints/artifacts.rb         | 22 ++++-----
 lib/mihari/web/endpoints/ip_addresses.rb      | 10 ++--
 lib/mihari/web/endpoints/rules.rb             | 48 +++++++++----------
 lib/mihari/web/endpoints/tags.rb              |  8 ++--
 spec/analyzers/feed_spec.rb                   |  4 +-
 spec/analyzers/hunterhow_spec.rb              |  2 +-
 spec/analyzers/zoomeye_spec.rb                |  2 +-
 spec/cli/alert_spec.rb                        |  4 +-
 spec/cli/artifact_spec.rb                     |  2 +-
 spec/cli/rule_spec.rb                         |  2 +-
 spec/cli/tag_spec.rb                          |  2 +-
 spec/commands/search_spec.rb                  |  2 +-
 spec/concerns/error_unwrappable_spec.rb       |  6 +--
 spec/concerns/retriable_spec.rb               |  2 +-
 spec/emitters/database_spec.rb                |  2 +-
 spec/emitters/misp_spec.rb                    |  2 +-
 spec/emitters/slack_spec.rb                   |  2 +-
 spec/emitters/the_hive_spec.rb                |  4 +-
 spec/emitters/webhook_spec.rb                 | 18 +++----
 spec/factories/alerts.rb                      | 10 ++--
 spec/factories/artifacts.rb                   |  8 ++--
 spec/factories/rules.rb                       | 10 ++--
 spec/fixtures/templates/test.json.jbuilder    |  2 +
 spec/http_spec.rb                             | 12 ++---
 spec/mihari_spec.rb                           |  4 +-
 spec/models/artifact_spec.rb                  |  4 +-
 spec/rule_spec.rb                             | 26 +++++-----
 spec/schemas/rule_spec.rb                     | 40 ++++++++--------
 spec/services/feed_parser_spec.rb             |  2 +-
 spec/support/httpbin.rb                       | 18 +++----
 .../shared_contexts/sidekiq_context.rb        |  8 ++--
 spec/web/endpoints/alerts_spec.rb             |  6 +--
 spec/web/endpoints/rules_spec.rb              |  8 ++--
 133 files changed, 499 insertions(+), 513 deletions(-)
 delete mode 100644 .standard.yml

diff --git a/.rubocop.yml b/.rubocop.yml
index e6c8f49f2..f01b44766 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -1,7 +1,3 @@
-Style/HashSyntax:
-  EnforcedShorthandSyntax: either
-Style/StringLiterals:
-  EnforcedStyle: double_quotes
 Metrics/BlockLength:
   Max: 150
   Exclude:
diff --git a/.standard.yml b/.standard.yml
deleted file mode 100644
index 8aad730b1..000000000
--- a/.standard.yml
+++ /dev/null
@@ -1,4 +0,0 @@
-ignore:
-  - "**/*":
-      - Layout/SpaceInsideHashLiteralBraces
-      - Style/RescueStandardError
diff --git a/lib/mihari.rb b/lib/mihari.rb
index 5d56e226f..4b1ff774e 100644
--- a/lib/mihari.rb
+++ b/lib/mihari.rb
@@ -160,7 +160,7 @@ def sidekiq?
     #
     def puma?
       !Puma.stats.nil?
-    rescue StandardError
+    rescue
       false
     end
 
diff --git a/lib/mihari/analyzers/base.rb b/lib/mihari/analyzers/base.rb
index 4d41a218f..edc8cd642 100644
--- a/lib/mihari/analyzers/base.rb
+++ b/lib/mihari/analyzers/base.rb
@@ -14,7 +14,7 @@ class Base < Actor
       # @param [Hash, nil] options
       #
       def initialize(query, options: nil)
-        super(options: options)
+        super(options:)
 
         @query = query
       end
diff --git a/lib/mihari/analyzers/binaryedge.rb b/lib/mihari/analyzers/binaryedge.rb
index c6bb4be59..9f03665ce 100644
--- a/lib/mihari/analyzers/binaryedge.rb
+++ b/lib/mihari/analyzers/binaryedge.rb
@@ -15,13 +15,13 @@ class BinaryEdge < Base
       # @param [String, nil] api_key
       #
       def initialize(query, options: nil, api_key: nil)
-        super(query, options: options)
+        super(query, options:)
 
         @api_key = api_key || Mihari.config.binaryedge_api_key
       end
 
       def artifacts
-        client.search_with_pagination(query, pagination_limit: pagination_limit).map(&:artifacts).flatten
+        client.search_with_pagination(query, pagination_limit:).map(&:artifacts).flatten
       end
 
       private
@@ -32,9 +32,9 @@ def artifacts
       #
       def client
         Clients::BinaryEdge.new(
-          api_key: api_key,
-          pagination_interval: pagination_interval,
-          timeout: timeout
+          api_key:,
+          pagination_interval:,
+          timeout:
         )
       end
     end
diff --git a/lib/mihari/analyzers/censys.rb b/lib/mihari/analyzers/censys.rb
index 5b7296a45..acabe2a5b 100644
--- a/lib/mihari/analyzers/censys.rb
+++ b/lib/mihari/analyzers/censys.rb
@@ -19,7 +19,7 @@ class Censys < Base
       # @param [String, nil] secret
       #
       def initialize(query, options: nil, id: nil, secret: nil)
-        super(query, options: options)
+        super(query, options:)
 
         @id = id || Mihari.config.censys_id
         @secret = secret || Mihari.config.censys_secret
@@ -29,7 +29,7 @@ def initialize(query, options: nil, id: nil, secret: nil)
       # @return [Array<Mihari::Models::Artifact>]
       #
       def artifacts
-        client.search_with_pagination(query, pagination_limit: pagination_limit).map do |res|
+        client.search_with_pagination(query, pagination_limit:).map do |res|
           res.result.artifacts
         end.flatten.uniq(&:data)
       end
@@ -48,10 +48,10 @@ def configured?
       #
       def client
         Clients::Censys.new(
-          id: id,
-          secret: secret,
-          pagination_interval: pagination_interval,
-          timeout: timeout
+          id:,
+          secret:,
+          pagination_interval:,
+          timeout:
         )
       end
 
diff --git a/lib/mihari/analyzers/circl.rb b/lib/mihari/analyzers/circl.rb
index 613708473..fff5ee6a0 100644
--- a/lib/mihari/analyzers/circl.rb
+++ b/lib/mihari/analyzers/circl.rb
@@ -24,7 +24,7 @@ class CIRCL < Base
       # @param [String, nil] password
       #
       def initialize(query, options: nil, username: nil, password: nil)
-        super(refang(query), options: options)
+        super(refang(query), options:)
 
         @type = DataType.type(query)
 
@@ -50,7 +50,7 @@ def configured?
       private
 
       def client
-        Clients::CIRCL.new(username: username, password: password, timeout: timeout)
+        Clients::CIRCL.new(username:, password:, timeout:)
       end
 
       def username?
diff --git a/lib/mihari/analyzers/crtsh.rb b/lib/mihari/analyzers/crtsh.rb
index f58a0eb94..10531cf9b 100644
--- a/lib/mihari/analyzers/crtsh.rb
+++ b/lib/mihari/analyzers/crtsh.rb
@@ -19,7 +19,7 @@ class Crtsh < Base
       # @param [String, nil] match
       #
       def initialize(query, options: nil, exclude_expired: true, match: nil)
-        super(query, options: options)
+        super(query, options:)
 
         @exclude_expired = exclude_expired
         @match = match
@@ -27,7 +27,7 @@ def initialize(query, options: nil, exclude_expired: true, match: nil)
 
       def artifacts
         exclude = exclude_expired ? "expired" : nil
-        client.search(query, exclude: exclude, match: match).map do |result|
+        client.search(query, exclude:, match:).map do |result|
           values = result["name_value"].to_s.lines.map(&:chomp).reject { |value| value.starts_with?("*.") }
           values.map { |value| Models::Artifact.new(data: value, metadata: result) }
         end.flatten
@@ -39,7 +39,7 @@ def artifacts
       # @return [Mihari::Clients::Crtsh]
       #
       def client
-        Mihari::Clients::Crtsh.new(timeout: timeout)
+        Mihari::Clients::Crtsh.new(timeout:)
       end
     end
   end
diff --git a/lib/mihari/analyzers/dnstwister.rb b/lib/mihari/analyzers/dnstwister.rb
index 207a8ce2d..9108d9f08 100644
--- a/lib/mihari/analyzers/dnstwister.rb
+++ b/lib/mihari/analyzers/dnstwister.rb
@@ -16,7 +16,7 @@ class DNSTwister < Base
       # @param [Hash, nil] options
       #
       def initialize(query, options: nil)
-        super(refang(query), options: options)
+        super(refang(query), options:)
 
         @type = DataType.type(query)
       end
@@ -40,7 +40,7 @@ def valid_type?
       end
 
       def client
-        Clients::DNSTwister.new(timeout: timeout)
+        Clients::DNSTwister.new(timeout:)
       end
 
       #
diff --git a/lib/mihari/analyzers/feed.rb b/lib/mihari/analyzers/feed.rb
index b77b17377..dd1a40521 100644
--- a/lib/mihari/analyzers/feed.rb
+++ b/lib/mihari/analyzers/feed.rb
@@ -28,30 +28,24 @@ class Feed < Base
       attr_reader :query
 
       #
-      # @param [String] query
+      # @param [String] url
       # @param [Hash, nil] options
-      # @param [String] method
-      # @param [Hash, nil] headers
-      # @param [Hash, nil] params
-      # @param [Hash, nil] json
-      # @param [form, nil] form
-      # @param [String] selector
+      # @param [Hash] params
       #
-      # @param [Object] url
-      def initialize(url, options: nil, method: "GET", headers: nil, params: nil, json: nil, form: nil, selector: "")
-        super(url, options: options)
-
-        @method = method
-        @headers = headers || {}
-        @params = params
-        @json = json
-        @form = form
-        @selector = selector
+      def initialize(url, options: nil, **params)
+        super(url, options:)
+
+        @method = params[:method] || "GET"
+        @headers = params[:headers] || {}
+        @params = params[:params]
+        @json = params[:json]
+        @form = params[:form]
+        @selector = params[:selector] || ""
       end
 
       def artifacts
         data = Services::FeedReader.call(
-          url, headers: headers, method: method, params: params, json: json, form: form, timeout: timeout
+          url, headers:, method:, params:, json:, form:, timeout:
         )
         Services::FeedParser.call(data, selector)
       end
diff --git a/lib/mihari/analyzers/fofa.rb b/lib/mihari/analyzers/fofa.rb
index 1b59898e0..baa2c7456 100644
--- a/lib/mihari/analyzers/fofa.rb
+++ b/lib/mihari/analyzers/fofa.rb
@@ -19,14 +19,14 @@ class Fofa < Base
       # @param [String, nil] email
       #
       def initialize(query, options: nil, api_key: nil, email: nil)
-        super(query, options: options)
+        super(query, options:)
 
         @api_key = api_key || Mihari.config.fofa_api_key
         @email = email || Mihari.config.fofa_email
       end
 
       def artifacts
-        client.search_with_pagination(query, pagination_limit: pagination_limit).map do |res|
+        client.search_with_pagination(query, pagination_limit:).map do |res|
           (res.results || []).map { |result| result[1] }
         end.flatten.compact
       end
@@ -46,10 +46,10 @@ def email?
       #
       def client
         Clients::Fofa.new(
-          api_key: api_key,
-          email: email,
-          pagination_interval: pagination_interval,
-          timeout: timeout
+          api_key:,
+          email:,
+          pagination_interval:,
+          timeout:
         )
       end
     end
diff --git a/lib/mihari/analyzers/greynoise.rb b/lib/mihari/analyzers/greynoise.rb
index ad72ae385..fc6bcce35 100644
--- a/lib/mihari/analyzers/greynoise.rb
+++ b/lib/mihari/analyzers/greynoise.rb
@@ -15,7 +15,7 @@ class GreyNoise < Base
       # @param [String, nil] api_key
       #
       def initialize(query, options: nil, api_key: nil)
-        super(query, options: options)
+        super(query, options:)
 
         @api_key = api_key || Mihari.config.greynoise_api_key
       end
@@ -23,7 +23,7 @@ def initialize(query, options: nil, api_key: nil)
       def artifacts
         client.gnql_search_with_pagination(
           query,
-          pagination_limit: pagination_limit
+          pagination_limit:
         ).map(&:artifacts).flatten
       end
 
@@ -31,9 +31,9 @@ def artifacts
 
       def client
         Clients::GreyNoise.new(
-          api_key: api_key,
-          pagination_interval: pagination_interval,
-          timeout: timeout
+          api_key:,
+          pagination_interval:,
+          timeout:
         )
       end
     end
diff --git a/lib/mihari/analyzers/hunterhow.rb b/lib/mihari/analyzers/hunterhow.rb
index 870c6c95b..a114cf575 100644
--- a/lib/mihari/analyzers/hunterhow.rb
+++ b/lib/mihari/analyzers/hunterhow.rb
@@ -23,7 +23,7 @@ class HunterHow < Base
       # @param [String, nil] api_key
       #
       def initialize(query, start_time: nil, end_time: nil, options: nil, api_key: nil)
-        super(query, options: options)
+        super(query, options:)
 
         @api_key = api_key || Mihari.config.hunterhow_api_key
 
@@ -48,9 +48,9 @@ def artifacts
 
       def client
         Clients::HunterHow.new(
-          api_key: api_key,
-          pagination_interval: pagination_interval,
-          timeout: timeout
+          api_key:,
+          pagination_interval:,
+          timeout:
         )
       end
     end
diff --git a/lib/mihari/analyzers/onyphe.rb b/lib/mihari/analyzers/onyphe.rb
index 293971814..88170eed9 100644
--- a/lib/mihari/analyzers/onyphe.rb
+++ b/lib/mihari/analyzers/onyphe.rb
@@ -17,7 +17,7 @@ class Onyphe < Base
       # @param [String, nil] api_key
       #
       def initialize(query, options: nil, api_key: nil)
-        super(query, options: options)
+        super(query, options:)
 
         @api_key = api_key || Mihari.config.onyphe_api_key
       end
@@ -25,7 +25,7 @@ def initialize(query, options: nil, api_key: nil)
       def artifacts
         client.datascan_with_pagination(
           query,
-          pagination_limit: pagination_limit
+          pagination_limit:
         ).map(&:artifacts).flatten
       end
 
@@ -33,9 +33,9 @@ def artifacts
 
       def client
         Clients::Onyphe.new(
-          api_key: api_key,
-          pagination_interval: pagination_interval,
-          timeout: timeout
+          api_key:,
+          pagination_interval:,
+          timeout:
         )
       end
     end
diff --git a/lib/mihari/analyzers/otx.rb b/lib/mihari/analyzers/otx.rb
index c38d2ee87..021c40f90 100644
--- a/lib/mihari/analyzers/otx.rb
+++ b/lib/mihari/analyzers/otx.rb
@@ -20,7 +20,7 @@ class OTX < Base
       # @param [String, nil] api_key
       #
       def initialize(query, options: nil, api_key: nil)
-        super(refang(query), options: options)
+        super(refang(query), options:)
 
         @type = DataType.type(query)
 
@@ -41,7 +41,7 @@ def artifacts
       private
 
       def client
-        Mihari::Clients::OTX.new(api_key: api_key, timeout: timeout)
+        Mihari::Clients::OTX.new(api_key:, timeout:)
       end
 
       #
diff --git a/lib/mihari/analyzers/passivetotal.rb b/lib/mihari/analyzers/passivetotal.rb
index 6ab806859..4c77c7e1c 100644
--- a/lib/mihari/analyzers/passivetotal.rb
+++ b/lib/mihari/analyzers/passivetotal.rb
@@ -24,7 +24,7 @@ class PassiveTotal < Base
       # @param [String, nil] username
       #
       def initialize(query, options: nil, api_key: nil, username: nil)
-        super(refang(query), options: options)
+        super(refang(query), options:)
 
         @type = DataType.type(query)
 
@@ -69,7 +69,7 @@ def reverse_whois_search
         res = client.reverse_whois_search(query)
         (res["results"] || []).map do |result|
           data = result["domain"]
-          Models::Artifact.new(data: data, metadata: result)
+          Models::Artifact.new(data:, metadata: result)
         end
       end
 
@@ -82,7 +82,7 @@ def ssl_search
       end
 
       def client
-        Clients::PassiveTotal.new(username: username, api_key: api_key, timeout: timeout)
+        Clients::PassiveTotal.new(username:, api_key:, timeout:)
       end
 
       #
diff --git a/lib/mihari/analyzers/pulsedive.rb b/lib/mihari/analyzers/pulsedive.rb
index 543217009..604652379 100644
--- a/lib/mihari/analyzers/pulsedive.rb
+++ b/lib/mihari/analyzers/pulsedive.rb
@@ -20,7 +20,7 @@ class Pulsedive < Base
       # @param [String, nil] api_key
       #
       def initialize(query, options: nil, api_key: nil)
-        super(refang(query), options: options)
+        super(refang(query), options:)
 
         @type = DataType.type(query)
 
@@ -38,7 +38,7 @@ def artifacts
             nil
           else
             data = property["value"]
-            Models::Artifact.new(data: data, metadata: property)
+            Models::Artifact.new(data:, metadata: property)
           end
         end
       end
@@ -46,7 +46,7 @@ def artifacts
       private
 
       def client
-        @client ||= Clients::PulseDive.new(api_key: api_key, timeout: timeout)
+        @client ||= Clients::PulseDive.new(api_key:, timeout:)
       end
 
       #
diff --git a/lib/mihari/analyzers/securitytrails.rb b/lib/mihari/analyzers/securitytrails.rb
index ede843c8d..31ab81b65 100644
--- a/lib/mihari/analyzers/securitytrails.rb
+++ b/lib/mihari/analyzers/securitytrails.rb
@@ -23,7 +23,7 @@ class SecurityTrails < Base
       # @param [String, nil] api_key
       #
       def initialize(query, options: nil, api_key: nil)
-        super(refang(query), options: options)
+        super(refang(query), options:)
 
         @type = DataType.type(query)
 
@@ -66,7 +66,7 @@ def ip_search
         res = client.ip_search(query)
         (res["records"] || []).filter_map do |record|
           data = record["hostname"]
-          Models::Artifact.new(data: data, metadata: record)
+          Models::Artifact.new(data:, metadata: record)
         end
       end
 
@@ -74,12 +74,12 @@ def mail_search
         res = client.mail_search(query)
         (res["records"] || []).filter_map do |record|
           data = record["hostname"]
-          Models::Artifact.new(data: data, metadata: record)
+          Models::Artifact.new(data:, metadata: record)
         end
       end
 
       def client
-        Clients::SecurityTrails.new(api_key: api_key, timeout: timeout)
+        Clients::SecurityTrails.new(api_key:, timeout:)
       end
 
       #
diff --git a/lib/mihari/analyzers/shodan.rb b/lib/mihari/analyzers/shodan.rb
index b1870dad5..dfa94183c 100644
--- a/lib/mihari/analyzers/shodan.rb
+++ b/lib/mihari/analyzers/shodan.rb
@@ -15,7 +15,7 @@ class Shodan < Base
       # @param [String, nil] api_key
       #
       def initialize(query, options: nil, api_key: nil)
-        super(query, options: options)
+        super(query, options:)
 
         @api_key = api_key || Mihari.config.shodan_api_key
       end
@@ -23,7 +23,7 @@ def initialize(query, options: nil, api_key: nil)
       def artifacts
         client.search_with_pagination(
           query,
-          pagination_limit: pagination_limit
+          pagination_limit:
         ).map(&:artifacts).flatten.uniq(&:data)
       end
 
@@ -34,9 +34,9 @@ def artifacts
       #
       def client
         Clients::Shodan.new(
-          api_key: api_key,
-          pagination_interval: pagination_interval,
-          timeout: timeout
+          api_key:,
+          pagination_interval:,
+          timeout:
         )
       end
     end
diff --git a/lib/mihari/analyzers/urlscan.rb b/lib/mihari/analyzers/urlscan.rb
index 27d06f00c..8b40d38f1 100644
--- a/lib/mihari/analyzers/urlscan.rb
+++ b/lib/mihari/analyzers/urlscan.rb
@@ -21,7 +21,7 @@ class Urlscan < Base
       # @param [Array<String>] allowed_data_types
       #
       def initialize(query, options: nil, api_key: nil, allowed_data_types: SUPPORTED_DATA_TYPES)
-        super(query, options: options)
+        super(query, options:)
 
         @api_key = api_key || Mihari.config.urlscan_api_key
         @allowed_data_types = allowed_data_types
@@ -33,7 +33,7 @@ def initialize(query, options: nil, api_key: nil, allowed_data_types: SUPPORTED_
 
       def artifacts
         # @type [Array<Mihari::Models::Artifact>]
-        artifacts = client.search_with_pagination(query, pagination_limit: pagination_limit).map(&:artifacts).flatten
+        artifacts = client.search_with_pagination(query, pagination_limit:).map(&:artifacts).flatten
         artifacts.select { |artifact| allowed_data_types.include? artifact.data_type }
       end
 
@@ -41,9 +41,9 @@ def artifacts
 
       def client
         Clients::Urlscan.new(
-          api_key: api_key,
-          pagination_interval: pagination_interval,
-          timeout: timeout
+          api_key:,
+          pagination_interval:,
+          timeout:
         )
       end
 
diff --git a/lib/mihari/analyzers/virustotal.rb b/lib/mihari/analyzers/virustotal.rb
index c020f4c2f..904402297 100644
--- a/lib/mihari/analyzers/virustotal.rb
+++ b/lib/mihari/analyzers/virustotal.rb
@@ -20,7 +20,7 @@ class VirusTotal < Base
       # @param [String, nil] api_key
       #
       def initialize(query, options: nil, api_key: nil)
-        super(refang(query), options: options)
+        super(refang(query), options:)
 
         @type = DataType.type(query)
 
@@ -50,7 +50,7 @@ def key_aliases
       private
 
       def client
-        Clients::VirusTotal.new(api_key: api_key)
+        Clients::VirusTotal.new(api_key:)
       end
 
       #
@@ -73,7 +73,7 @@ def domain_search
         data = res["data"] || []
         data.filter_map do |item|
           data = item.dig("attributes", "ip_address")
-          data.nil? ? nil : Models::Artifact.new(data: data, metadata: item)
+          data.nil? ? nil : Models::Artifact.new(data:, metadata: item)
         end
       end
 
@@ -88,7 +88,7 @@ def ip_search
         data = res["data"] || []
         data.filter_map do |item|
           data = item.dig("attributes", "host_name")
-          Models::Artifact.new(data: data, metadata: item)
+          Models::Artifact.new(data:, metadata: item)
         end.uniq
       end
     end
diff --git a/lib/mihari/analyzers/virustotal_intelligence.rb b/lib/mihari/analyzers/virustotal_intelligence.rb
index e47b65353..040eac565 100644
--- a/lib/mihari/analyzers/virustotal_intelligence.rb
+++ b/lib/mihari/analyzers/virustotal_intelligence.rb
@@ -15,13 +15,13 @@ class VirusTotalIntelligence < Base
       # @param [String, nil] api_key
       #
       def initialize(query, options: nil, api_key: nil)
-        super(query, options: options)
+        super(query, options:)
 
         @api_key = api_key || Mihari.config.virustotal_api_key
       end
 
       def artifacts
-        client.intel_search_with_pagination(query, pagination_limit: pagination_limit).map(&:artifacts).flatten
+        client.intel_search_with_pagination(query, pagination_limit:).map(&:artifacts).flatten
       end
 
       class << self
@@ -56,9 +56,9 @@ def configuration_keys
       #
       def client
         Clients::VirusTotal.new(
-          api_key: api_key,
-          pagination_interval: pagination_interval,
-          timeout: timeout
+          api_key:,
+          pagination_interval:,
+          timeout:
         )
       end
     end
diff --git a/lib/mihari/analyzers/zoomeye.rb b/lib/mihari/analyzers/zoomeye.rb
index 545d5a261..b2c773f1b 100644
--- a/lib/mihari/analyzers/zoomeye.rb
+++ b/lib/mihari/analyzers/zoomeye.rb
@@ -19,7 +19,7 @@ class ZoomEye < Base
       # @param [String] type
       #
       def initialize(query, options: nil, api_key: nil, type: "host")
-        super(query, options: options)
+        super(query, options:)
 
         @type = type
         @api_key = api_key || Mihari.config.zoomeye_api_key
@@ -53,9 +53,9 @@ def valid_type?
 
       def client
         Clients::ZoomEye.new(
-          api_key: api_key,
-          pagination_interval: pagination_interval,
-          timeout: timeout
+          api_key:,
+          pagination_interval:,
+          timeout:
         )
       end
 
@@ -74,7 +74,7 @@ def convert(res)
           if data.is_a?(Array)
             data.map { |d| Models::Artifact.new(data: d, metadata: match) }
           else
-            Models::Artifact.new(data: data, metadata: match)
+            Models::Artifact.new(data:, metadata: match)
           end
         end.flatten
       end
diff --git a/lib/mihari/cli/application.rb b/lib/mihari/cli/application.rb
index f772a6704..578c8c8cb 100644
--- a/lib/mihari/cli/application.rb
+++ b/lib/mihari/cli/application.rb
@@ -55,7 +55,7 @@ def error_to_detail(error)
 
         def safe_execute
           yield
-        rescue StandardError => e
+        rescue => e
           error = unwrap_error(e)
 
           # Raise error if it's a Thor::Error to follow Thor's manner
diff --git a/lib/mihari/clients/base.rb b/lib/mihari/clients/base.rb
index 2fc5f1047..5e942ffc6 100644
--- a/lib/mihari/clients/base.rb
+++ b/lib/mihari/clients/base.rb
@@ -41,7 +41,7 @@ def sleep_pagination_interval
       # @return [::HTTP::Client]
       #
       def http
-        @http ||= HTTP::Factory.build(headers: headers, timeout: timeout)
+        @http ||= HTTP::Factory.build(headers:, timeout:)
       end
 
       #
@@ -60,7 +60,7 @@ def url_for(path)
       # @return [::HTTP::Response]
       #
       def get(path, params: nil)
-        http.get(url_for(path), params: params)
+        http.get(url_for(path), params:)
       end
 
       #
@@ -70,7 +70,7 @@ def get(path, params: nil)
       # @return [Hash]
       #
       def get_json(path, params: nil)
-        res = get(path, params: params)
+        res = get(path, params:)
         JSON.parse res.body.to_s
       end
 
@@ -81,7 +81,7 @@ def get_json(path, params: nil)
       # @return [::HTTP::Response]
       #
       def post(path, json: {})
-        http.post(url_for(path), json: json)
+        http.post(url_for(path), json:)
       end
 
       #
@@ -91,7 +91,7 @@ def post(path, json: {})
       # @return [Hash]
       #
       def post_json(path, json: {})
-        res = http.post(url_for(path), json: json)
+        res = http.post(url_for(path), json:)
         JSON.parse res.body.to_s
       end
     end
diff --git a/lib/mihari/clients/binaryedge.rb b/lib/mihari/clients/binaryedge.rb
index 0ff1a0509..c48ae4f5f 100644
--- a/lib/mihari/clients/binaryedge.rb
+++ b/lib/mihari/clients/binaryedge.rb
@@ -22,7 +22,7 @@ def initialize(
       )
         headers["x-key"] = api_key
 
-        super(base_url, headers: headers, timeout: timeout, pagination_interval: pagination_interval)
+        super(base_url, headers:, timeout:, pagination_interval:)
       end
 
       #
@@ -34,11 +34,11 @@ def initialize(
       #
       def search(query, page: 1, only_ips: nil)
         params = {
-          query: query,
-          page: page,
-          only_ips: only_ips
+          query:,
+          page:,
+          only_ips:
         }.compact
-        Structs::BinaryEdge::Response.from_dynamic! get_json("/v2/query/search", params: params)
+        Structs::BinaryEdge::Response.from_dynamic! get_json("/v2/query/search", params:)
       end
 
       #
@@ -51,7 +51,7 @@ def search(query, page: 1, only_ips: nil)
       def search_with_pagination(query, only_ips: nil, pagination_limit: Mihari.config.pagination_limit)
         Enumerator.new do |y|
           (1..pagination_limit).each do |page|
-            res = search(query, page: page, only_ips: only_ips)
+            res = search(query, page:, only_ips:)
 
             y.yield res
 
diff --git a/lib/mihari/clients/censys.rb b/lib/mihari/clients/censys.rb
index 07fbf2928..eafeef19a 100644
--- a/lib/mihari/clients/censys.rb
+++ b/lib/mihari/clients/censys.rb
@@ -29,7 +29,7 @@ def initialize(
 
         headers["authorization"] = "Basic #{Base64.strict_encode64("#{id}:#{secret}")}"
 
-        super(base_url, headers: headers, pagination_interval: pagination_interval, timeout: timeout)
+        super(base_url, headers:, pagination_interval:, timeout:)
       end
 
       #
@@ -45,8 +45,8 @@ def initialize(
       # @return [Mihari::Structs::Censys::Response]
       #
       def search(query, per_page: nil, cursor: nil)
-        params = { q: query, per_page: per_page, cursor: cursor }.compact
-        Structs::Censys::Response.from_dynamic! get_json("/api/v2/hosts/search", params: params)
+        params = {q: query, per_page:, cursor:}.compact
+        Structs::Censys::Response.from_dynamic! get_json("/api/v2/hosts/search", params:)
       end
 
       #
@@ -61,7 +61,7 @@ def search_with_pagination(query, per_page: nil, pagination_limit: Mihari.config
 
         Enumerator.new do |y|
           pagination_limit.times do
-            res = search(query, per_page: per_page, cursor: cursor)
+            res = search(query, per_page:, cursor:)
 
             y.yield res
 
diff --git a/lib/mihari/clients/circl.rb b/lib/mihari/clients/circl.rb
index 0321c88db..a3fc77d59 100644
--- a/lib/mihari/clients/circl.rb
+++ b/lib/mihari/clients/circl.rb
@@ -21,7 +21,7 @@ def initialize(base_url = "https://www.circl.lu", username:, password:, headers:
 
         headers["authorization"] = "Basic #{Base64.strict_encode64("#{username}:#{password}")}"
 
-        super(base_url, headers: headers, timeout: timeout)
+        super(base_url, headers:, timeout:)
       end
 
       #
@@ -77,7 +77,7 @@ def ssl_cquery(query)
       # @param [Hash] params
       #
       def _get(path, params: {})
-        res = get(path, params: params)
+        res = get(path, params:)
         body = res.body.to_s
         content_type = res["Content-Type"].to_s
 
diff --git a/lib/mihari/clients/crtsh.rb b/lib/mihari/clients/crtsh.rb
index 2546a6e96..e0fe1d069 100644
--- a/lib/mihari/clients/crtsh.rb
+++ b/lib/mihari/clients/crtsh.rb
@@ -12,7 +12,7 @@ class Crtsh < Base
       # @param [Integer, nil] timeout
       #
       def initialize(base_url = "https://crt.sh", headers: {}, timeout: nil)
-        super(base_url, headers: headers, timeout: timeout)
+        super(base_url, headers:, timeout:)
       end
 
       #
@@ -25,7 +25,7 @@ def initialize(base_url = "https://crt.sh", headers: {}, timeout: nil)
       # @return [Array<Hash>]
       #
       def search(identity, match: nil, exclude: nil)
-        get_json("/", params: { identity: identity, match: match, exclude: exclude, output: "json" }.compact)
+        get_json("/", params: {identity:, match:, exclude:, output: "json"}.compact)
       end
     end
   end
diff --git a/lib/mihari/clients/dnstwister.rb b/lib/mihari/clients/dnstwister.rb
index c86341380..0f4f8462e 100644
--- a/lib/mihari/clients/dnstwister.rb
+++ b/lib/mihari/clients/dnstwister.rb
@@ -12,7 +12,7 @@ class DNSTwister < Base
       # @param [Integer, nil] timeout
       #
       def initialize(base_url = "https://dnstwister.report", headers: {}, timeout: nil)
-        super(base_url, headers: headers, timeout: timeout)
+        super(base_url, headers:, timeout:)
       end
 
       #
diff --git a/lib/mihari/clients/fofa.rb b/lib/mihari/clients/fofa.rb
index 07700ccf1..387f5ff98 100644
--- a/lib/mihari/clients/fofa.rb
+++ b/lib/mihari/clients/fofa.rb
@@ -39,7 +39,7 @@ def initialize(
         @api_key = api_key
         @email = email
 
-        super(base_url, headers: headers, pagination_interval: pagination_interval, timeout: timeout)
+        super(base_url, headers:, pagination_interval:, timeout:)
       end
 
       #
@@ -51,8 +51,8 @@ def initialize(
       #
       def search(query, page:, size: PAGE_SIZE)
         qbase64 = Base64.urlsafe_encode64(query)
-        params = { qbase64: qbase64, size: size, page: page, email: email, key: api_key }.compact
-        res = Structs::Fofa::Response.from_dynamic!(get_json("/api/v1/search/all", params: params))
+        params = {qbase64:, size:, page:, email:, key: api_key}.compact
+        res = Structs::Fofa::Response.from_dynamic!(get_json("/api/v1/search/all", params:))
         raise ResponseError, res.errmsg if res.error
 
         res
@@ -68,7 +68,7 @@ def search(query, page:, size: PAGE_SIZE)
       def search_with_pagination(query, size: PAGE_SIZE, pagination_limit: Mihari.config.pagination_limit)
         Enumerator.new do |y|
           (1..pagination_limit).each do |page|
-            res = search(query, page: page, size: size)
+            res = search(query, page:, size:)
 
             y.yield res
 
diff --git a/lib/mihari/clients/google_public_dns.rb b/lib/mihari/clients/google_public_dns.rb
index 34372c800..0905aab1d 100644
--- a/lib/mihari/clients/google_public_dns.rb
+++ b/lib/mihari/clients/google_public_dns.rb
@@ -12,7 +12,7 @@ class GooglePublicDNS < Base
       # @param [Integer, nil] timeout
       #
       def initialize(base_url = "https://dns.google", headers: {}, timeout: nil)
-        super(base_url, headers: headers, timeout: timeout)
+        super(base_url, headers:, timeout:)
       end
 
       #
@@ -24,7 +24,7 @@ def initialize(base_url = "https://dns.google", headers: {}, timeout: nil)
       #
       def query_all(name)
         Structs::GooglePublicDNS::Response.from_dynamic! get_json("/resolve",
-          params: { name: name, type: "ALL" })
+          params: {name:, type: "ALL"})
       end
     end
   end
diff --git a/lib/mihari/clients/greynoise.rb b/lib/mihari/clients/greynoise.rb
index cf1303d06..51f0c8666 100644
--- a/lib/mihari/clients/greynoise.rb
+++ b/lib/mihari/clients/greynoise.rb
@@ -25,7 +25,7 @@ def initialize(
         raise(ArgumentError, "api_key is required") unless api_key
 
         headers["key"] = api_key
-        super(base_url, headers: headers, pagination_interval: pagination_interval, timeout: timeout)
+        super(base_url, headers:, pagination_interval:, timeout:)
       end
 
       #
@@ -38,8 +38,8 @@ def initialize(
       # @return [Mihari::Structs::GreyNoise::Response]
       #
       def gnql_search(query, size: PAGE_SIZE, scroll: nil)
-        params = { query: query, size: size, scroll: scroll }.compact
-        Structs::GreyNoise::Response.from_dynamic! get_json("/v2/experimental/gnql", params: params)
+        params = {query:, size:, scroll:}.compact
+        Structs::GreyNoise::Response.from_dynamic! get_json("/v2/experimental/gnql", params:)
       end
 
       #
@@ -54,7 +54,7 @@ def gnql_search_with_pagination(query, size: PAGE_SIZE, pagination_limit: Mihari
 
         Enumerator.new do |y|
           pagination_limit.times do
-            res = gnql_search(query, size: size, scroll: scroll)
+            res = gnql_search(query, size:, scroll:)
 
             y.yield res
 
diff --git a/lib/mihari/clients/hunterhow.rb b/lib/mihari/clients/hunterhow.rb
index 169578431..6306dd7b3 100644
--- a/lib/mihari/clients/hunterhow.rb
+++ b/lib/mihari/clients/hunterhow.rb
@@ -29,7 +29,7 @@ def initialize(
       )
         raise(ArgumentError, "api_key is required") unless api_key
 
-        super(base_url, headers: headers, pagination_interval: pagination_interval, timeout: timeout)
+        super(base_url, headers:, pagination_interval:, timeout:)
 
         @api_key = api_key
       end
@@ -46,13 +46,13 @@ def initialize(
       def search(query, start_time:, end_time:, page: 1, page_size: PAGE_SIZE)
         params = {
           query: Base64.urlsafe_encode64(query),
-          page: page,
-          page_size: page_size,
-          start_time: start_time,
-          end_time: end_time,
+          page:,
+          page_size:,
+          start_time:,
+          end_time:,
           "api-key": api_key
         }.compact
-        Structs::HunterHow::Response.from_dynamic! get_json("/search", params: params)
+        Structs::HunterHow::Response.from_dynamic! get_json("/search", params:)
       end
 
       #
@@ -75,10 +75,10 @@ def search_with_pagination(
           (1..pagination_limit).each do |page|
             res = search(
               query,
-              start_time: start_time,
-              end_time: end_time,
-              page: page,
-              page_size: page_size
+              start_time:,
+              end_time:,
+              page:,
+              page_size:
             )
 
             y.yield res
diff --git a/lib/mihari/clients/misp.rb b/lib/mihari/clients/misp.rb
index 82e1569c7..ad014684c 100644
--- a/lib/mihari/clients/misp.rb
+++ b/lib/mihari/clients/misp.rb
@@ -18,7 +18,7 @@ def initialize(base_url, api_key:, headers: {}, timeout: nil)
         headers["authorization"] = api_key
         headers["accept"] = "application/json"
 
-        super(base_url, headers: headers, timeout: timeout)
+        super(base_url, headers:, timeout:)
       end
 
       #
diff --git a/lib/mihari/clients/mmdb.rb b/lib/mihari/clients/mmdb.rb
index 6facc8a74..77d6309e5 100644
--- a/lib/mihari/clients/mmdb.rb
+++ b/lib/mihari/clients/mmdb.rb
@@ -12,7 +12,7 @@ class MMDB < Base
       # @param [Integer, nil] timeout
       #
       def initialize(base_url = "https://ip.circl.lu", headers: {}, timeout: nil)
-        super(base_url, headers: headers, timeout: timeout)
+        super(base_url, headers:, timeout:)
       end
 
       #
diff --git a/lib/mihari/clients/onyphe.rb b/lib/mihari/clients/onyphe.rb
index 0e4663d53..b37fa3d48 100644
--- a/lib/mihari/clients/onyphe.rb
+++ b/lib/mihari/clients/onyphe.rb
@@ -27,7 +27,7 @@ def initialize(
       )
         raise(ArgumentError, "api_key is required") if api_key.nil?
 
-        super(base_url, headers: headers, pagination_interval: pagination_interval, timeout: timeout)
+        super(base_url, headers:, pagination_interval:, timeout:)
 
         @api_key = api_key
       end
@@ -39,8 +39,8 @@ def initialize(
       # @return [Mihari::Structs::Onyphe::Response]
       #
       def datascan(query, page: 1)
-        params = { page: page, apikey: api_key }
-        Structs::Onyphe::Response.from_dynamic! get_json("/api/v2/simple/datascan/#{query}", params: params)
+        params = {page:, apikey: api_key}
+        Structs::Onyphe::Response.from_dynamic! get_json("/api/v2/simple/datascan/#{query}", params:)
       end
 
       #
@@ -52,7 +52,7 @@ def datascan(query, page: 1)
       def datascan_with_pagination(query, pagination_limit: Mihari.config.pagination_limit)
         Enumerator.new do |y|
           (1..pagination_limit).each do |page|
-            res = datascan(query, page: page)
+            res = datascan(query, page:)
 
             y.yield res
 
diff --git a/lib/mihari/clients/otx.rb b/lib/mihari/clients/otx.rb
index de81fbbc3..3c8888f29 100644
--- a/lib/mihari/clients/otx.rb
+++ b/lib/mihari/clients/otx.rb
@@ -16,7 +16,7 @@ def initialize(base_url = "https://otx.alienvault.com", api_key:, headers: {}, t
         raise(ArgumentError, "api_key is required") unless api_key
 
         headers["x-otx-api-key"] = api_key
-        super(base_url, headers: headers, timeout: timeout)
+        super(base_url, headers:, timeout:)
       end
 
       #
diff --git a/lib/mihari/clients/passivetotal.rb b/lib/mihari/clients/passivetotal.rb
index a5060f2cd..cf47c8277 100644
--- a/lib/mihari/clients/passivetotal.rb
+++ b/lib/mihari/clients/passivetotal.rb
@@ -21,7 +21,7 @@ def initialize(base_url = "https://api.passivetotal.org", username:, api_key:, h
 
         headers["authorization"] = "Basic #{Base64.strict_encode64("#{username}:#{api_key}")}"
 
-        super(base_url, headers: headers, timeout: timeout)
+        super(base_url, headers:, timeout:)
       end
 
       #
@@ -32,8 +32,8 @@ def initialize(base_url = "https://api.passivetotal.org", username:, api_key:, h
       # @return [Hash]
       #
       def passive_dns_search(query)
-        params = { query: query }
-        get_json("/v2/dns/passive/unique", params: params)
+        params = {query:}
+        get_json("/v2/dns/passive/unique", params:)
       end
 
       #
@@ -45,7 +45,7 @@ def passive_dns_search(query)
       #
       def reverse_whois_search(query)
         get_json("/v2/whois/search", params: {
-          query: query,
+          query:,
           field: "email"
         }.compact)
       end
@@ -58,7 +58,7 @@ def reverse_whois_search(query)
       # @return [Hash]
       #
       def ssl_search(query)
-        get_json("/v2/ssl-certificate/history", params: { query: query })
+        get_json("/v2/ssl-certificate/history", params: {query:})
       end
     end
   end
diff --git a/lib/mihari/clients/publsedive.rb b/lib/mihari/clients/publsedive.rb
index d25cadf0e..355197717 100644
--- a/lib/mihari/clients/publsedive.rb
+++ b/lib/mihari/clients/publsedive.rb
@@ -20,7 +20,7 @@ def initialize(base_url = "https://pulsedive.com", api_key:, headers: {}, timeou
 
         @api_key = api_key
 
-        super(base_url, headers: headers, timeout: timeout)
+        super(base_url, headers:, timeout:)
       end
 
       #
@@ -29,7 +29,7 @@ def initialize(base_url = "https://pulsedive.com", api_key:, headers: {}, timeou
       # @return [Hash]
       #
       def get_indicator(ip_or_domain)
-        get_json "/api/info.php", params: { indicator: ip_or_domain, key: api_key }
+        get_json "/api/info.php", params: {indicator: ip_or_domain, key: api_key}
       end
 
       #
@@ -38,7 +38,7 @@ def get_indicator(ip_or_domain)
       # @return [Hash]
       #
       def get_properties(indicator_id)
-        get_json "/api/info.php", params: { iid: indicator_id, get: "properties", key: api_key }
+        get_json "/api/info.php", params: {iid: indicator_id, get: "properties", key: api_key}
       end
     end
   end
diff --git a/lib/mihari/clients/securitytrails.rb b/lib/mihari/clients/securitytrails.rb
index 4b437bc26..db556a642 100644
--- a/lib/mihari/clients/securitytrails.rb
+++ b/lib/mihari/clients/securitytrails.rb
@@ -17,7 +17,7 @@ def initialize(base_url = "https://api.securitytrails.com", api_key:, headers: {
 
         headers["apikey"] = api_key
 
-        super(base_url, headers: headers, timeout: timeout)
+        super(base_url, headers:, timeout:)
       end
 
       #
@@ -48,7 +48,7 @@ def mail_search(query)
       # @return [Hash]
       #
       def search_by_mail(mail)
-        post_json "/v1/domains/list", json: { filter: { whois_email: mail } }
+        post_json "/v1/domains/list", json: {filter: {whois_email: mail}}
       end
 
       #
@@ -57,7 +57,7 @@ def search_by_mail(mail)
       # @return [Hash]
       #
       def search_by_ip(ip)
-        post_json "/v1/domains/list", json: { filter: { ipv4: ip } }
+        post_json "/v1/domains/list", json: {filter: {ipv4: ip}}
       end
 
       #
@@ -69,13 +69,13 @@ def search_by_ip(ip)
       #
       def get_all_dns_history(domain, type:, page: 1)
         Enumerator.new do |y|
-          res = get_dns_history(domain, type: type, page: page)
+          res = get_dns_history(domain, type:, page:)
           y.yield res
 
           pages = res["pages"].to_i
 
           (page + 1..pages).each do |page|
-            y.yield get_dns_history(domain, type: type, page: page)
+            y.yield get_dns_history(domain, type:, page:)
           end
         end
       end
@@ -90,7 +90,7 @@ def get_all_dns_history(domain, type:, page: 1)
       # @return [Hash]
       #
       def get_dns_history(domain, type:, page:)
-        get_json "/v1/history/#{domain}/dns/#{type}", params: { page: page }
+        get_json "/v1/history/#{domain}/dns/#{type}", params: {page:}
       end
     end
   end
diff --git a/lib/mihari/clients/shodan.rb b/lib/mihari/clients/shodan.rb
index 827989714..47d891735 100644
--- a/lib/mihari/clients/shodan.rb
+++ b/lib/mihari/clients/shodan.rb
@@ -27,7 +27,7 @@ def initialize(
       )
         raise(ArgumentError, "api_key is required") unless api_key
 
-        super(base_url, headers: headers, pagination_interval: pagination_interval, timeout: timeout)
+        super(base_url, headers:, pagination_interval:, timeout:)
 
         @api_key = api_key
       end
@@ -41,12 +41,12 @@ def initialize(
       #
       def search(query, page: 1, minify: true)
         params = {
-          query: query,
-          page: page,
-          minify: minify,
+          query:,
+          page:,
+          minify:,
           key: api_key
         }
-        Structs::Shodan::Response.from_dynamic! get_json("/shodan/host/search", params: params)
+        Structs::Shodan::Response.from_dynamic! get_json("/shodan/host/search", params:)
       end
 
       #
@@ -59,7 +59,7 @@ def search(query, page: 1, minify: true)
       def search_with_pagination(query, minify: true, pagination_limit: Mihari.config.pagination_limit)
         Enumerator.new do |y|
           (1..pagination_limit).each do |page|
-            res = search(query, page: page, minify: minify)
+            res = search(query, page:, minify:)
 
             y.yield res
 
diff --git a/lib/mihari/clients/shodan_internet_db.rb b/lib/mihari/clients/shodan_internet_db.rb
index 7b0605506..4562b0f53 100644
--- a/lib/mihari/clients/shodan_internet_db.rb
+++ b/lib/mihari/clients/shodan_internet_db.rb
@@ -12,7 +12,7 @@ class ShodanInternetDB < Base
       # @param [Integer, nil] timeout
       #
       def initialize(base_url = "https://internetdb.shodan.io", headers: {}, timeout: nil)
-        super(base_url, headers: headers, timeout: timeout)
+        super(base_url, headers:, timeout:)
       end
 
       #
diff --git a/lib/mihari/clients/the_hive.rb b/lib/mihari/clients/the_hive.rb
index 04346f7c8..f0ec67e91 100644
--- a/lib/mihari/clients/the_hive.rb
+++ b/lib/mihari/clients/the_hive.rb
@@ -19,7 +19,7 @@ def initialize(base_url, api_key:, api_version: "v1", headers: {}, timeout: nil)
         raise(ArgumentError, "api_key is required") unless api_key
 
         headers["authorization"] = "Bearer #{api_key}"
-        super(base_url, headers: headers, timeout: timeout)
+        super(base_url, headers:, timeout:)
 
         @api_version = api_version
       end
@@ -31,7 +31,7 @@ def initialize(base_url, api_key:, api_version: "v1", headers: {}, timeout: nil)
       #
       def alert(json)
         json = json.to_camelback_keys.compact
-        post_json("/api/#{api_version}/alert", json: json)
+        post_json("/api/#{api_version}/alert", json:)
       end
     end
   end
diff --git a/lib/mihari/clients/urlscan.rb b/lib/mihari/clients/urlscan.rb
index c40a0799e..e18e7772a 100644
--- a/lib/mihari/clients/urlscan.rb
+++ b/lib/mihari/clients/urlscan.rb
@@ -24,7 +24,7 @@ def initialize(
 
         headers["api-key"] = api_key
 
-        super(base_url, headers: headers, pagination_interval: pagination_interval, timeout: timeout)
+        super(base_url, headers:, pagination_interval:, timeout:)
       end
 
       #
@@ -35,8 +35,8 @@ def initialize(
       # @return [Mihari::Structs::Urlscan::Response]
       #
       def search(q, size: nil, search_after: nil)
-        params = { q: q, size: size, search_after: search_after }.compact
-        Structs::Urlscan::Response.from_dynamic! get_json("/api/v1/search/", params: params)
+        params = {q:, size:, search_after:}.compact
+        Structs::Urlscan::Response.from_dynamic! get_json("/api/v1/search/", params:)
       end
 
       #
@@ -51,7 +51,7 @@ def search_with_pagination(q, size: nil, pagination_limit: Mihari.config.paginat
 
         Enumerator.new do |y|
           pagination_limit.times do
-            res = search(q, size: size, search_after: search_after)
+            res = search(q, size:, search_after:)
 
             y.yield res
 
diff --git a/lib/mihari/clients/virustotal.rb b/lib/mihari/clients/virustotal.rb
index 74755b585..aeaf3a767 100644
--- a/lib/mihari/clients/virustotal.rb
+++ b/lib/mihari/clients/virustotal.rb
@@ -24,7 +24,7 @@ def initialize(
 
         headers["x-apikey"] = api_key
 
-        super(base_url, headers: headers, pagination_interval: pagination_interval, timeout: timeout)
+        super(base_url, headers:, pagination_interval:, timeout:)
       end
 
       #
@@ -52,8 +52,8 @@ def ip_search(query)
       # @return [Mihari::Structs::VirusTotalIntelligence::Response]
       #
       def intel_search(query, cursor: nil)
-        params = { query: query, cursor: cursor }.compact
-        Structs::VirusTotalIntelligence::Response.from_dynamic! get_json("/api/v3/intelligence/search", params: params)
+        params = {query:, cursor:}.compact
+        Structs::VirusTotalIntelligence::Response.from_dynamic! get_json("/api/v3/intelligence/search", params:)
       end
 
       #
@@ -67,7 +67,7 @@ def intel_search_with_pagination(query, pagination_limit: Mihari.config.paginati
 
         Enumerator.new do |y|
           pagination_limit.times do
-            res = intel_search(query, cursor: cursor)
+            res = intel_search(query, cursor:)
 
             y.yield res
 
diff --git a/lib/mihari/clients/zoomeye.rb b/lib/mihari/clients/zoomeye.rb
index 5f03af422..d6f7b956b 100644
--- a/lib/mihari/clients/zoomeye.rb
+++ b/lib/mihari/clients/zoomeye.rb
@@ -27,14 +27,14 @@ def initialize(
         raise(ArgumentError, "api_key is required") unless api_key
 
         headers["api-key"] = api_key
-        super(base_url, headers: headers, pagination_interval: pagination_interval, timeout: timeout)
+        super(base_url, headers:, pagination_interval:, timeout:)
       end
 
       #
       # @return [::HTTP::Client]
       #
       def http
-        @http ||= HTTP::Factory.build(headers: headers, timeout: timeout, raise_exception: false)
+        @http ||= HTTP::Factory.build(headers:, timeout:, raise_exception: false)
       end
 
       #
@@ -48,11 +48,11 @@ def http
       #
       def host_search(query, page: nil, facets: nil)
         params = {
-          query: query,
-          page: page,
-          facets: facets
+          query:,
+          page:,
+          facets:
         }.compact
-        get_json "/host/search", params: params
+        get_json "/host/search", params:
       end
 
       #
@@ -65,7 +65,7 @@ def host_search(query, page: nil, facets: nil)
       def host_search_with_pagination(query, facets: nil, pagination_limit: Mihari.config.pagination_limit)
         Enumerator.new do |y|
           (1..pagination_limit).each do |page|
-            res = host_search(query, facets: facets, page: page)
+            res = host_search(query, facets:, page:)
 
             break if res.nil?
 
@@ -90,11 +90,11 @@ def host_search_with_pagination(query, facets: nil, pagination_limit: Mihari.con
       #
       def web_search(query, page: nil, facets: nil)
         params = {
-          query: query,
-          page: page,
-          facets: facets
+          query:,
+          page:,
+          facets:
         }.compact
-        get_json "/web/search", params: params
+        get_json "/web/search", params:
       end
 
       #
@@ -107,7 +107,7 @@ def web_search(query, page: nil, facets: nil)
       def web_search_with_pagination(query, facets: nil, pagination_limit: Mihari.config.pagination_limit)
         Enumerator.new do |y|
           (1..pagination_limit).each do |page|
-            res = web_search(query, facets: facets, page: page)
+            res = web_search(query, facets:, page:)
 
             break if res.nil?
 
diff --git a/lib/mihari/commands/alert.rb b/lib/mihari/commands/alert.rb
index ba91692e5..678be7301 100644
--- a/lib/mihari/commands/alert.rb
+++ b/lib/mihari/commands/alert.rb
@@ -21,7 +21,7 @@ def included(thor)
               # @return [Mihari::Services::ResultValue]
               #
               def _search(q, page: 1, limit: 10)
-                filter = Structs::Filters::Search.new(q: q, page: page, limit: limit)
+                filter = Structs::Filters::Search.new(q:, page:, limit:)
                 Services::AlertSearcher.result(filter).value!
               end
             end
diff --git a/lib/mihari/commands/artifact.rb b/lib/mihari/commands/artifact.rb
index 7e2b2e08b..be30b2927 100644
--- a/lib/mihari/commands/artifact.rb
+++ b/lib/mihari/commands/artifact.rb
@@ -20,7 +20,7 @@ def included(thor)
               # @return [Mihari::Services::ResultValue]
               #
               def _search(q, page: 1, limit: 10)
-                filter = Structs::Filters::Search.new(q: q, page: page, limit: limit)
+                filter = Structs::Filters::Search.new(q:, page:, limit:)
                 Services::ArtifactSearcher.result(filter).value!
               end
             end
diff --git a/lib/mihari/commands/rule.rb b/lib/mihari/commands/rule.rb
index 53bcb12fe..85d38bebf 100644
--- a/lib/mihari/commands/rule.rb
+++ b/lib/mihari/commands/rule.rb
@@ -21,7 +21,7 @@ def included(thor)
               # @return [Mihari::Services::ResultValue]
               #
               def _search(q, page: 1, limit: 10)
-                filter = Structs::Filters::Search.new(q: q, page: page, limit: limit)
+                filter = Structs::Filters::Search.new(q:, page:, limit:)
                 Services::RuleSearcher.result(filter).value!
               end
             end
diff --git a/lib/mihari/commands/tag.rb b/lib/mihari/commands/tag.rb
index 414f3031c..a432edf11 100644
--- a/lib/mihari/commands/tag.rb
+++ b/lib/mihari/commands/tag.rb
@@ -20,7 +20,7 @@ def included(thor)
               # @return [Mihari::Services::ResultValue]
               #
               def _search(q, page: 1, limit: 10)
-                filter = Structs::Filters::Search.new(q: q, page: page, limit: limit)
+                filter = Structs::Filters::Search.new(q:, page:, limit:)
                 Services::TagSearcher.result(filter).value!
               end
             end
diff --git a/lib/mihari/concerns/configurable.rb b/lib/mihari/concerns/configurable.rb
index 427d0f86f..07cec5016 100644
--- a/lib/mihari/concerns/configurable.rb
+++ b/lib/mihari/concerns/configurable.rb
@@ -40,7 +40,7 @@ def configuration_items
           configuration_keys.map do |key|
             value = Mihari.config.send(key)
             value = "REDACTED" if value && Mihari.config.hide_config_values
-            { key: key.upcase, value: value }
+            {key: key.upcase, value:}
           end
         end
 
diff --git a/lib/mihari/concerns/retriable.rb b/lib/mihari/concerns/retriable.rb
index 1609c1022..edffde9ee 100644
--- a/lib/mihari/concerns/retriable.rb
+++ b/lib/mihari/concerns/retriable.rb
@@ -41,7 +41,7 @@ def retry_on_error(times: 3, interval: 5, exponential_backoff: true, condition:
         begin
           try += 1
           yield
-        rescue StandardError => e
+        rescue => e
           # Raise error if it's not a retriable error
           raise e unless condition.call(e)
 
diff --git a/lib/mihari/constants.rb b/lib/mihari/constants.rb
index 8e1a92d86..62b6dc7e9 100644
--- a/lib/mihari/constants.rb
+++ b/lib/mihari/constants.rb
@@ -5,8 +5,8 @@ module Mihari
   DEFAULT_DATA_TYPES = Types::DataTypes.values.freeze
 
   # @return [Array<Hash>]
-  DEFAULT_EMITTERS = Emitters::Database.keys.map { |name| { emitter: name.downcase } }.freeze
+  DEFAULT_EMITTERS = Emitters::Database.keys.map { |name| {emitter: name.downcase} }.freeze
 
   # @return [Array<Hash>]
-  DEFAULT_ENRICHERS = Mihari.enricher_to_class.keys.map { |name| { enricher: name.downcase } }.freeze
+  DEFAULT_ENRICHERS = Mihari.enricher_to_class.keys.map { |name| {enricher: name.downcase} }.freeze
 end
diff --git a/lib/mihari/emitters/base.rb b/lib/mihari/emitters/base.rb
index c3162886f..8e4eac0af 100644
--- a/lib/mihari/emitters/base.rb
+++ b/lib/mihari/emitters/base.rb
@@ -14,7 +14,7 @@ class Base < Actor
       # @param [Hash, nil] options
       #
       def initialize(rule:, options: nil)
-        super(options: options)
+        super(options:)
 
         @rule = rule
       end
diff --git a/lib/mihari/emitters/database.rb b/lib/mihari/emitters/database.rb
index 7404af324..3d527785a 100644
--- a/lib/mihari/emitters/database.rb
+++ b/lib/mihari/emitters/database.rb
@@ -16,7 +16,7 @@ class Database < Base
       def call(artifacts)
         return if artifacts.empty?
 
-        alert = Models::Alert.new(artifacts: artifacts, rule_id: rule.id)
+        alert = Models::Alert.new(artifacts:, rule_id: rule.id)
         alert.save
         alert
       end
diff --git a/lib/mihari/emitters/misp.rb b/lib/mihari/emitters/misp.rb
index 6967c040c..48301cbbe 100644
--- a/lib/mihari/emitters/misp.rb
+++ b/lib/mihari/emitters/misp.rb
@@ -24,7 +24,7 @@ class MISP < Base
       # @param [Hash, nil] params
       #
       def initialize(rule:, options: nil, **params)
-        super(rule: rule, options: options)
+        super(rule:, options:)
 
         @url = params[:url] || Mihari.config.misp_url
         @api_key = params[:api_key] || Mihari.config.misp_api_key
@@ -51,7 +51,7 @@ def call(artifacts)
           Event: {
             info: rule.title,
             Attribute: artifacts.map { |artifact| build_attribute(artifact) },
-            Tag: rule.tags.map { |tag| { name: tag } }
+            Tag: rule.tags.map { |tag| {name: tag} }
           }
         })
       end
@@ -66,7 +66,7 @@ def target
       private
 
       def client
-        @client ||= Clients::MISP.new(url, api_key: api_key, timeout: timeout)
+        @client ||= Clients::MISP.new(url, api_key:, timeout:)
       end
 
       #
@@ -77,7 +77,7 @@ def client
       # @return [Hash]
       #
       def build_attribute(artifact)
-        { value: artifact.data, type: to_misp_type(type: artifact.data_type, value: artifact.data) }
+        {value: artifact.data, type: to_misp_type(type: artifact.data_type, value: artifact.data)}
       end
 
       #
diff --git a/lib/mihari/emitters/slack.rb b/lib/mihari/emitters/slack.rb
index 0b46d5c59..6e9fc925a 100644
--- a/lib/mihari/emitters/slack.rb
+++ b/lib/mihari/emitters/slack.rb
@@ -30,25 +30,25 @@ def actions
       def vt_link
         return nil unless _vt_link
 
-        { type: "button", text: "VirusTotal", url: _vt_link }
+        {type: "button", text: "VirusTotal", url: _vt_link}
       end
 
       def urlscan_link
         return nil unless _urlscan_link
 
-        { type: "button", text: "urlscan.io", url: _urlscan_link }
+        {type: "button", text: "urlscan.io", url: _urlscan_link}
       end
 
       def censys_link
         return nil unless _censys_link
 
-        { type: "button", text: "Censys", url: _censys_link }
+        {type: "button", text: "Censys", url: _censys_link}
       end
 
       def shodan_link
         return nil unless _shodan_link
 
-        { type: "button", text: "Shodan", url: _shodan_link }
+        {type: "button", text: "Shodan", url: _shodan_link}
       end
 
       # @return [Array]
@@ -57,7 +57,7 @@ def to_a
           {
             text: defanged_data,
             fallback: "VT & urlscan.io links",
-            actions: actions
+            actions:
           }
         ]
       end
@@ -140,7 +140,7 @@ class Slack < Base
       # @param [Hash, nil] params
       #
       def initialize(rule:, options: nil, **params)
-        super(rule: rule, options: options)
+        super(rule:, options:)
 
         @webhook_url = params[:webhook_url] || Mihari.config.slack_webhook_url
         @channel = params[:channel] || Mihari.config.slack_channel || DEFAULT_CHANNEL
@@ -177,9 +177,9 @@ def target
       #
       def notifier
         @notifier ||= lambda do
-          return ::Slack::Notifier.new(webhook_url, channel: channel, username: username) if timeout.nil?
+          return ::Slack::Notifier.new(webhook_url, channel:, username:) if timeout.nil?
 
-          ::Slack::Notifier.new(webhook_url, channel: channel, username: username, http_options: { timeout: timeout })
+          ::Slack::Notifier.new(webhook_url, channel:, username:, http_options: {timeout:})
         end.call
       end
 
@@ -215,7 +215,7 @@ def call(artifacts)
 
         @artifacts = artifacts
 
-        notifier.post(text: text, attachments: attachments, mrkdwn: true)
+        notifier.post(text:, attachments:, mrkdwn: true)
       end
     end
   end
diff --git a/lib/mihari/emitters/the_hive.rb b/lib/mihari/emitters/the_hive.rb
index 82f506ba0..29fb798ca 100644
--- a/lib/mihari/emitters/the_hive.rb
+++ b/lib/mihari/emitters/the_hive.rb
@@ -18,7 +18,7 @@ class TheHive < Base
       # @param [Hash] params
       #
       def initialize(rule:, options: nil, **params)
-        super(rule: rule, options: options)
+        super(rule:, options:)
 
         @url = params[:url] || Mihari.config.thehive_url
         @api_key = params[:api_key] || Mihari.config.thehive_api_key
@@ -56,7 +56,7 @@ def call(artifacts)
       private
 
       def client
-        Clients::TheHive.new(url, api_key: api_key, api_version: "v1", timeout: timeout)
+        Clients::TheHive.new(url, api_key:, api_version: "v1", timeout:)
       end
 
       #
diff --git a/lib/mihari/emitters/webhook.rb b/lib/mihari/emitters/webhook.rb
index 7080a2c7e..22b53ae4b 100644
--- a/lib/mihari/emitters/webhook.rb
+++ b/lib/mihari/emitters/webhook.rb
@@ -36,7 +36,7 @@ class Webhook < Base
       # @param [Hash, nil] params
       #
       def initialize(rule:, options: nil, **params)
-        super(rule: rule, options: options)
+        super(rule:, options:)
 
         @url = Addressable::URI.parse(params[:url])
         @headers = params[:headers] || {}
@@ -75,14 +75,14 @@ def call(artifacts)
         when "GET"
           http.get(url).body.to_s
         when "POST"
-          http.post(url, json: json).body.to_s
+          http.post(url, json:).body.to_s
         end
       end
 
       private
 
       def http
-        HTTP::Factory.build headers: headers, timeout: timeout
+        HTTP::Factory.build headers:, timeout:
       end
 
       #
@@ -91,7 +91,7 @@ def http
       # @return [String]
       #
       def render
-        Services::JbuilderRenderer.call(template, { rule: rule, artifacts: artifacts })
+        Services::JbuilderRenderer.call(template, {rule:, artifacts:})
       end
 
       #
diff --git a/lib/mihari/enrichers/base.rb b/lib/mihari/enrichers/base.rb
index 9e52583bf..3572abb7f 100644
--- a/lib/mihari/enrichers/base.rb
+++ b/lib/mihari/enrichers/base.rb
@@ -10,7 +10,7 @@ class Base < Actor
       # @param [Hash, nil] options
       #
       def initialize(options: nil)
-        super(options: options)
+        super(options:)
       end
 
       #
diff --git a/lib/mihari/enrichers/google_public_dns.rb b/lib/mihari/enrichers/google_public_dns.rb
index 22efad9bf..4ba002d48 100644
--- a/lib/mihari/enrichers/google_public_dns.rb
+++ b/lib/mihari/enrichers/google_public_dns.rb
@@ -50,7 +50,7 @@ def supported_data_types
       end
 
       def client
-        @client ||= Clients::GooglePublicDNS.new(timeout: timeout)
+        @client ||= Clients::GooglePublicDNS.new(timeout:)
       end
     end
   end
diff --git a/lib/mihari/enrichers/mmdb.rb b/lib/mihari/enrichers/mmdb.rb
index 9737a1171..701b91fa0 100644
--- a/lib/mihari/enrichers/mmdb.rb
+++ b/lib/mihari/enrichers/mmdb.rb
@@ -39,7 +39,7 @@ def supported_data_types
       end
 
       def client
-        @client ||= Clients::MMDB.new(timeout: timeout)
+        @client ||= Clients::MMDB.new(timeout:)
       end
     end
   end
diff --git a/lib/mihari/enrichers/shodan.rb b/lib/mihari/enrichers/shodan.rb
index a77bdd909..69ca50ecd 100644
--- a/lib/mihari/enrichers/shodan.rb
+++ b/lib/mihari/enrichers/shodan.rb
@@ -22,13 +22,13 @@ def call(artifact)
 
           if tapped.reverse_dns_names.empty?
             tapped.reverse_dns_names = (res&.hostnames || []).map do |name|
-              Models::ReverseDnsName.new(name: name)
+              Models::ReverseDnsName.new(name:)
             end
           end
 
           if tapped.vulnerabilities.empty?
             tapped.vulnerabilities = (res&.vulns || []).map do |name|
-              Models::Vulnerability.new(name: name)
+              Models::Vulnerability.new(name:)
             end
           end
         end
@@ -50,7 +50,7 @@ def supported_data_types
       end
 
       def client
-        @client ||= Clients::ShodanInternetDB.new(timeout: timeout)
+        @client ||= Clients::ShodanInternetDB.new(timeout:)
       end
     end
   end
diff --git a/lib/mihari/enrichers/whois.rb b/lib/mihari/enrichers/whois.rb
index 3122ffc67..f967def2f 100644
--- a/lib/mihari/enrichers/whois.rb
+++ b/lib/mihari/enrichers/whois.rb
@@ -23,7 +23,7 @@ def call(artifact)
         return if record.parser.available?
 
         artifact.whois_record ||= Models::WhoisRecord.new(
-          domain: domain,
+          domain:,
           created_on: get_created_on(record.parser),
           updated_on: get_updated_on(record.parser),
           expires_on: get_expires_on(record.parser),
@@ -64,7 +64,7 @@ def whois
         @whois ||= lambda do
           return ::Whois::Client.new if timeout.nil?
 
-          ::Whois::Client.new(timeout: timeout)
+          ::Whois::Client.new(timeout:)
         end.call
       end
 
diff --git a/lib/mihari/entities/alert.rb b/lib/mihari/entities/alert.rb
index cc62d70cf..4406432b3 100644
--- a/lib/mihari/entities/alert.rb
+++ b/lib/mihari/entities/alert.rb
@@ -3,16 +3,16 @@
 module Mihari
   module Entities
     class Alert < Grape::Entity
-      expose :id, documentation: { type: Integer, required: true }
-      expose :rule_id, documentation: { type: String, required: true }, as: :ruleId
-      expose :created_at, documentation: { type: DateTime, required: true }, as: :createdAt
+      expose :id, documentation: {type: Integer, required: true}
+      expose :rule_id, documentation: {type: String, required: true}, as: :ruleId
+      expose :created_at, documentation: {type: DateTime, required: true}, as: :createdAt
 
-      expose :artifacts, using: Entities::BaseArtifact, documentation: { type: Entities::BaseArtifact, is_array: true }
-      expose :tags, using: Entities::Tag, documentation: { type: Entities::Tag, is_array: true, required: true }
+      expose :artifacts, using: Entities::BaseArtifact, documentation: {type: Entities::BaseArtifact, is_array: true}
+      expose :tags, using: Entities::Tag, documentation: {type: Entities::Tag, is_array: true, required: true}
     end
 
     class AlertsWithPagination < Pagination
-      expose :results, using: Entities::Alert, documentation: { type: Entities::Alert, is_array: true, required: true }
+      expose :results, using: Entities::Alert, documentation: {type: Entities::Alert, is_array: true, required: true}
     end
   end
 end
diff --git a/lib/mihari/entities/artifact.rb b/lib/mihari/entities/artifact.rb
index 6e8d8c2fb..217bd2fe1 100644
--- a/lib/mihari/entities/artifact.rb
+++ b/lib/mihari/entities/artifact.rb
@@ -3,40 +3,40 @@
 module Mihari
   module Entities
     class BaseArtifact < Grape::Entity
-      expose :id, documentation: { type: Integer, required: true }
-      expose :data, documentation: { type: String, required: true }
-      expose :data_type, documentation: { type: String, required: true }, as: :dataType
-      expose :source, documentation: { type: String, required: true }
-      expose :query, documentation: { type: String, required: false }
-      expose :created_at, documentation: { type: DateTime, required: true }, as: :createdAt
-      expose :tags, using: Entities::Tag, documentation: { type: Entities::Tag, is_array: true, required: true }
+      expose :id, documentation: {type: Integer, required: true}
+      expose :data, documentation: {type: String, required: true}
+      expose :data_type, documentation: {type: String, required: true}, as: :dataType
+      expose :source, documentation: {type: String, required: true}
+      expose :query, documentation: {type: String, required: false}
+      expose :created_at, documentation: {type: DateTime, required: true}, as: :createdAt
+      expose :tags, using: Entities::Tag, documentation: {type: Entities::Tag, is_array: true, required: true}
     end
 
     class Artifact < BaseArtifact
-      expose :metadata, documentation: { type: Hash }
+      expose :metadata, documentation: {type: Hash}
       expose :autonomous_system, using: Entities::AutonomousSystem,
-        documentation: { type: Entities::AutonomousSystem, required: false }, as: :autonomousSystem
-      expose :geolocation, using: Entities::Geolocation, documentation: { type: Entities::Geolocation, required: false }
+        documentation: {type: Entities::AutonomousSystem, required: false}, as: :autonomousSystem
+      expose :geolocation, using: Entities::Geolocation, documentation: {type: Entities::Geolocation, required: false}
       expose :whois_record, using: Entities::WhoisRecord,
-        documentation: { type: Entities::WhoisRecord, required: false }, as: :whoisRecord
+        documentation: {type: Entities::WhoisRecord, required: false}, as: :whoisRecord
 
       expose :reverse_dns_names, using: Entities::ReverseDnsName,
-        documentation: { type: Entities::ReverseDnsName, is_array: true, required: false }, as: :reverseDnsNames do |status, _options|
+        documentation: {type: Entities::ReverseDnsName, is_array: true, required: false}, as: :reverseDnsNames do |status, _options|
         status.reverse_dns_names.empty? ? nil : status.reverse_dns_names
       end
       expose :dns_records, using: Entities::DnsRecord,
-        documentation: { type: Entities::DnsRecord, is_array: true, required: false }, as: :dnsRecords do |status, _options|
+        documentation: {type: Entities::DnsRecord, is_array: true, required: false}, as: :dnsRecords do |status, _options|
         status.dns_records.empty? ? nil : status.dns_records
       end
-      expose :ceps, using: Entities::CPE, documentation: { type: Entities::CPE, is_array: true, required: false },
+      expose :ceps, using: Entities::CPE, documentation: {type: Entities::CPE, is_array: true, required: false},
         as: :cpes do |status, _options|
         status.cpes.empty? ? nil : status.cpes
       end
-      expose :ports, using: Entities::Port, documentation: { type: Entities::Port, is_array: true, required: false },
+      expose :ports, using: Entities::Port, documentation: {type: Entities::Port, is_array: true, required: false},
         as: :ports do |status, _options|
         status.ports.empty? ? nil : status.ports
       end
-      expose :vulnerabilities, using: Vulnerability, documentation: { type: Vulnerability, is_array: true, required: false },
+      expose :vulnerabilities, using: Vulnerability, documentation: {type: Vulnerability, is_array: true, required: false},
         as: :vulnerabilities do |status, _options|
         status.vulnerabilities.empty? ? nil : status.vulnerabilities
       end
@@ -44,7 +44,7 @@ class Artifact < BaseArtifact
 
     class ArtifactsWithPagination < Pagination
       expose :results, using: Entities::BaseArtifact,
-        documentation: { type: Entities::Artifact, is_array: true, required: true }
+        documentation: {type: Entities::Artifact, is_array: true, required: true}
     end
   end
 end
diff --git a/lib/mihari/entities/autonomous_system.rb b/lib/mihari/entities/autonomous_system.rb
index 27aaa430e..569a07c18 100644
--- a/lib/mihari/entities/autonomous_system.rb
+++ b/lib/mihari/entities/autonomous_system.rb
@@ -3,7 +3,7 @@
 module Mihari
   module Entities
     class AutonomousSystem < Grape::Entity
-      expose :number, documentation: { type: Integer, required: true }
+      expose :number, documentation: {type: Integer, required: true}
     end
   end
 end
diff --git a/lib/mihari/entities/config.rb b/lib/mihari/entities/config.rb
index 75f48d942..f020f9e49 100644
--- a/lib/mihari/entities/config.rb
+++ b/lib/mihari/entities/config.rb
@@ -3,10 +3,10 @@
 module Mihari
   module Entities
     class Config < Grape::Entity
-      expose :name, documentation: { type: String, required: true }
-      expose :type, documentation: { type: String, required: true }
-      expose :items, documentation: { type: Hash, is_array: true, required: true }
-      expose :configured, documentation: { type: Grape::API::Boolean, required: true }
+      expose :name, documentation: {type: String, required: true}
+      expose :type, documentation: {type: String, required: true}
+      expose :items, documentation: {type: Hash, is_array: true, required: true}
+      expose :configured, documentation: {type: Grape::API::Boolean, required: true}
     end
   end
 end
diff --git a/lib/mihari/entities/cpe.rb b/lib/mihari/entities/cpe.rb
index cf8a98a5a..21812bbf1 100644
--- a/lib/mihari/entities/cpe.rb
+++ b/lib/mihari/entities/cpe.rb
@@ -3,8 +3,8 @@
 module Mihari
   module Entities
     class CPE < Grape::Entity
-      expose :name, documentation: { type: String, required: true }
-      expose :created_at, documentation: { type: DateTime, required: true }, as: :createdAt
+      expose :name, documentation: {type: String, required: true}
+      expose :created_at, documentation: {type: DateTime, required: true}, as: :createdAt
     end
   end
 end
diff --git a/lib/mihari/entities/dns.rb b/lib/mihari/entities/dns.rb
index 9ad834e99..741cccde2 100644
--- a/lib/mihari/entities/dns.rb
+++ b/lib/mihari/entities/dns.rb
@@ -3,9 +3,9 @@
 module Mihari
   module Entities
     class DnsRecord < Grape::Entity
-      expose :resource, documentation: { type: String, required: true }
-      expose :value, documentation: { type: String, required: true }
-      expose :created_at, documentation: { type: DateTime, required: true }, as: :createdAt
+      expose :resource, documentation: {type: String, required: true}
+      expose :value, documentation: {type: String, required: true}
+      expose :created_at, documentation: {type: DateTime, required: true}, as: :createdAt
     end
   end
 end
diff --git a/lib/mihari/entities/geolocation.rb b/lib/mihari/entities/geolocation.rb
index 7a74dec6c..d5658d481 100644
--- a/lib/mihari/entities/geolocation.rb
+++ b/lib/mihari/entities/geolocation.rb
@@ -3,9 +3,9 @@
 module Mihari
   module Entities
     class Geolocation < Grape::Entity
-      expose :country, documentation: { type: String, required: true }
-      expose :country_code, documentation: { type: String, required: true }, as: :countryCode
-      expose :created_at, documentation: { type: DateTime, required: true }, as: :createdAt
+      expose :country, documentation: {type: String, required: true}
+      expose :country_code, documentation: {type: String, required: true}, as: :countryCode
+      expose :created_at, documentation: {type: DateTime, required: true}, as: :createdAt
     end
   end
 end
diff --git a/lib/mihari/entities/ip_address.rb b/lib/mihari/entities/ip_address.rb
index d70b8da1b..a1e55f8ea 100644
--- a/lib/mihari/entities/ip_address.rb
+++ b/lib/mihari/entities/ip_address.rb
@@ -3,9 +3,9 @@
 module Mihari
   module Entities
     class IPAddress < Grape::Entity
-      expose :country_code, documentation: { type: String, required: true }, as: :countryCode
-      expose :asn, documentation: { type: Integer, required: false }
-      expose :loc, documentation: { type: String, required: false }
+      expose :country_code, documentation: {type: String, required: true}, as: :countryCode
+      expose :asn, documentation: {type: Integer, required: false}
+      expose :loc, documentation: {type: String, required: false}
     end
   end
 end
diff --git a/lib/mihari/entities/messages.rb b/lib/mihari/entities/messages.rb
index c19518ca8..a1a491275 100644
--- a/lib/mihari/entities/messages.rb
+++ b/lib/mihari/entities/messages.rb
@@ -3,15 +3,15 @@
 module Mihari
   module Entities
     class Message < Grape::Entity
-      expose :message, documentation: { type: String, required: true }
+      expose :message, documentation: {type: String, required: true}
     end
 
     class ErrorMessage < Message
-      expose :detail, documentation: { type: Hash, required: false }
+      expose :detail, documentation: {type: Hash, required: false}
     end
 
     class QueueMessage < Message
-      expose :queued, documentation: { type: Grape::API::Boolean, required: true }
+      expose :queued, documentation: {type: Grape::API::Boolean, required: true}
     end
   end
 end
diff --git a/lib/mihari/entities/pagination.rb b/lib/mihari/entities/pagination.rb
index aa43ae949..683985770 100644
--- a/lib/mihari/entities/pagination.rb
+++ b/lib/mihari/entities/pagination.rb
@@ -3,9 +3,9 @@
 module Mihari
   module Entities
     class Pagination < Grape::Entity
-      expose :total, documentation: { type: Integer, required: true }
-      expose :current_page, documentation: { type: Integer, required: true }, as: :currentPage
-      expose :page_size, documentation: { type: Integer, required: true }, as: :pageSize
+      expose :total, documentation: {type: Integer, required: true}
+      expose :current_page, documentation: {type: Integer, required: true}, as: :currentPage
+      expose :page_size, documentation: {type: Integer, required: true}, as: :pageSize
     end
   end
 end
diff --git a/lib/mihari/entities/port.rb b/lib/mihari/entities/port.rb
index 8f1e2bef3..09dfe4d06 100644
--- a/lib/mihari/entities/port.rb
+++ b/lib/mihari/entities/port.rb
@@ -3,8 +3,8 @@
 module Mihari
   module Entities
     class Port < Grape::Entity
-      expose :number, documentation: { type: Integer, required: true }
-      expose :created_at, documentation: { type: DateTime, required: true }, as: :createdAt
+      expose :number, documentation: {type: Integer, required: true}
+      expose :created_at, documentation: {type: DateTime, required: true}, as: :createdAt
     end
   end
 end
diff --git a/lib/mihari/entities/reverse_dns.rb b/lib/mihari/entities/reverse_dns.rb
index 6442a2e87..154a1bf12 100644
--- a/lib/mihari/entities/reverse_dns.rb
+++ b/lib/mihari/entities/reverse_dns.rb
@@ -3,8 +3,8 @@
 module Mihari
   module Entities
     class ReverseDnsName < Grape::Entity
-      expose :name, documentation: { type: String, required: true }
-      expose :created_at, documentation: { type: DateTime, required: true }, as: :createdAt
+      expose :name, documentation: {type: String, required: true}
+      expose :created_at, documentation: {type: DateTime, required: true}, as: :createdAt
     end
   end
 end
diff --git a/lib/mihari/entities/rule.rb b/lib/mihari/entities/rule.rb
index 23d2181b2..f60faeb5c 100644
--- a/lib/mihari/entities/rule.rb
+++ b/lib/mihari/entities/rule.rb
@@ -3,17 +3,17 @@
 module Mihari
   module Entities
     class Rule < Grape::Entity
-      expose :id, documentation: { type: String, required: true }
-      expose :title, documentation: { type: String, required: true }
-      expose :description, documentation: { type: String, required: true }
-      expose :yaml, documentation: { type: String, required: true }
-      expose :created_at, documentation: { type: DateTime, required: true }, as: :createdAt
-      expose :updated_at, documentation: { type: DateTime, required: true }, as: :updatedAt
-      expose :tags, using: Entities::Tag, documentation: { type: Entities::Tag, is_array: true, required: true }
+      expose :id, documentation: {type: String, required: true}
+      expose :title, documentation: {type: String, required: true}
+      expose :description, documentation: {type: String, required: true}
+      expose :yaml, documentation: {type: String, required: true}
+      expose :created_at, documentation: {type: DateTime, required: true}, as: :createdAt
+      expose :updated_at, documentation: {type: DateTime, required: true}, as: :updatedAt
+      expose :tags, using: Entities::Tag, documentation: {type: Entities::Tag, is_array: true, required: true}
     end
 
     class RulesWithPagination < Pagination
-      expose :results, using: Entities::Rule, documentation: { type: Entities::Rule, is_array: true, required: true }
+      expose :results, using: Entities::Rule, documentation: {type: Entities::Rule, is_array: true, required: true}
     end
   end
 end
diff --git a/lib/mihari/entities/tag.rb b/lib/mihari/entities/tag.rb
index 05d661b23..9a5b79a59 100644
--- a/lib/mihari/entities/tag.rb
+++ b/lib/mihari/entities/tag.rb
@@ -3,12 +3,12 @@
 module Mihari
   module Entities
     class Tag < Grape::Entity
-      expose :id, documentation: { type: Integer, required: true }
-      expose :name, documentation: { type: String, required: true }
+      expose :id, documentation: {type: Integer, required: true}
+      expose :name, documentation: {type: String, required: true}
     end
 
     class TagsWithPagination < Pagination
-      expose :results, using: Entities::Tag, documentation: { type: Entities::Tag, is_array: true, required: true }
+      expose :results, using: Entities::Tag, documentation: {type: Entities::Tag, is_array: true, required: true}
     end
   end
 end
diff --git a/lib/mihari/entities/vulnerability.rb b/lib/mihari/entities/vulnerability.rb
index 32a082fcf..036ffa989 100644
--- a/lib/mihari/entities/vulnerability.rb
+++ b/lib/mihari/entities/vulnerability.rb
@@ -3,8 +3,8 @@
 module Mihari
   module Entities
     class Vulnerability < Grape::Entity
-      expose :name, documentation: { type: String, required: true }
-      expose :created_at, documentation: { type: DateTime, required: true }, as: :createdAt
+      expose :name, documentation: {type: String, required: true}
+      expose :created_at, documentation: {type: DateTime, required: true}, as: :createdAt
     end
   end
 end
diff --git a/lib/mihari/entities/whois.rb b/lib/mihari/entities/whois.rb
index e4cb14082..10b5f55d2 100644
--- a/lib/mihari/entities/whois.rb
+++ b/lib/mihari/entities/whois.rb
@@ -3,15 +3,15 @@
 module Mihari
   module Entities
     class WhoisRecord < Grape::Entity
-      expose :domain, documentation: { type: String, required: true }
-      expose :created_on, documentation: { type: Date, required: false }, as: :createdOn
-      expose :updated_on, documentation: { type: Date, required: false }, as: :updatedOn
-      expose :expires_on, documentation: { type: Date, required: false }, as: :expiresOn
-      expose :registrar, documentation: { type: Hash, required: false }
-      expose :contacts, documentation: { type: Hash, is_array: true, required: true } do |whois_record, _options|
+      expose :domain, documentation: {type: String, required: true}
+      expose :created_on, documentation: {type: Date, required: false}, as: :createdOn
+      expose :updated_on, documentation: {type: Date, required: false}, as: :updatedOn
+      expose :expires_on, documentation: {type: Date, required: false}, as: :expiresOn
+      expose :registrar, documentation: {type: Hash, required: false}
+      expose :contacts, documentation: {type: Hash, is_array: true, required: true} do |whois_record, _options|
         whois_record.contacts.map(&:to_camelback_keys)
       end
-      expose :created_at, documentation: { type: DateTime, required: true }, as: :createdAt
+      expose :created_at, documentation: {type: DateTime, required: true}, as: :createdAt
     end
   end
 end
diff --git a/lib/mihari/errors.rb b/lib/mihari/errors.rb
index 054301c96..5968d2e20 100644
--- a/lib/mihari/errors.rb
+++ b/lib/mihari/errors.rb
@@ -74,7 +74,7 @@ def initialize(msg, status_code, body)
     end
 
     def detail
-      { status_code: status_code, body: body }
+      {status_code:, body:}
     end
   end
 
diff --git a/lib/mihari/models/artifact.rb b/lib/mihari/models/artifact.rb
index bce0a55a2..82fd642ca 100644
--- a/lib/mihari/models/artifact.rb
+++ b/lib/mihari/models/artifact.rb
@@ -159,8 +159,8 @@ class Artifact < ActiveRecord::Base
       #
       def unique?(base_time: nil, artifact_ttl: nil)
         artifact = self.class.joins(:alert).where(
-          data: data,
-          alert: { rule_id: rule_id }
+          data:,
+          alert: {rule_id:}
         ).order(created_at: :desc).first
         return true if artifact.nil?
 
diff --git a/lib/mihari/models/port.rb b/lib/mihari/models/port.rb
index 84b063ea1..96cf8256a 100644
--- a/lib/mihari/models/port.rb
+++ b/lib/mihari/models/port.rb
@@ -19,7 +19,7 @@ class << self
         #
         def build_by_ip(ip, enricher: Enrichers::Shodan.new)
           enricher.result(ip).fmap do |res|
-            (res&.ports || []).map { |port| new(port: port) }
+            (res&.ports || []).map { |port| new(port:) }
           end.value_or []
         end
       end
diff --git a/lib/mihari/rule.rb b/lib/mihari/rule.rb
index 2d6a925a8..6da374c74 100644
--- a/lib/mihari/rule.rb
+++ b/lib/mihari/rule.rb
@@ -103,7 +103,7 @@ def updated_on
     #
     def tags
       data[:tags].uniq.filter_map do |name|
-        Models::Tag.find_or_create_by(name: name)
+        Models::Tag.find_or_create_by(name:)
       end
     end
 
@@ -163,7 +163,7 @@ def normalized_artifacts
     # @return [Array<Mihari::Models::Artifact>]
     #
     def unique_artifacts
-      normalized_artifacts.select { |artifact| artifact.unique?(base_time: base_time, artifact_ttl: artifact_ttl) }
+      normalized_artifacts.select { |artifact| artifact.unique?(base_time:, artifact_ttl:) }
     end
 
     #
@@ -221,11 +221,11 @@ def model
       end
     rescue ActiveRecord::RecordNotFound
       Mihari::Models::Rule.new(
-        id: id,
-        title: title,
-        description: description,
-        data: data,
-        taggings: taggings
+        id:,
+        title:,
+        description:,
+        data:,
+        taggings:
       )
     end
 
@@ -319,9 +319,7 @@ def analyzers
       @analyzers ||= queries.deep_dup.map do |params|
         name = params.delete(:analyzer)
         klass = get_analyzer_class(name)
-        klass.from_params(params).tap do |analyzer|
-          analyzer.validate_configuration!
-        end
+        klass.from_params(params).tap(&:validate_configuration!)
       end
     end
 
@@ -363,9 +361,7 @@ def emitters
         options = params.delete(:options)
 
         klass = get_emitter_class(name)
-        klass.new(rule: self, options: options, **params).tap do |emitter|
-          emitter.validate_configuration!
-        end
+        klass.new(rule: self, options:, **params).tap(&:validate_configuration!)
       end
     end
 
@@ -399,7 +395,7 @@ def enrichers
         options = params.delete(:options)
 
         klass = get_enricher_class(name)
-        klass.new(options: options, **params)
+        klass.new(options:, **params)
       end
     end
 
diff --git a/lib/mihari/services/feed.rb b/lib/mihari/services/feed.rb
index 6af551ca8..538fd0e71 100644
--- a/lib/mihari/services/feed.rb
+++ b/lib/mihari/services/feed.rb
@@ -28,10 +28,10 @@ def call(url, headers: {}, method: "GET", params: nil, json: nil, form: nil, tim
 
         return read_file(url.path) if url.scheme == "file"
 
-        http = HTTP::Factory.build(headers: headers, timeout: timeout)
+        http = HTTP::Factory.build(headers:, timeout:)
 
-        res = http.get(url, params: params) if method == "GET"
-        res = http.post(url, params: params, json: json, form: form) if method == "POST"
+        res = http.get(url, params:) if method == "GET"
+        res = http.post(url, params:, json:, form:) if method == "POST"
 
         body = res.body.to_s
         content_type = res["Content-Type"].to_s
diff --git a/lib/mihari/services/proxies.rb b/lib/mihari/services/proxies.rb
index e61c405b0..4c886913a 100644
--- a/lib/mihari/services/proxies.rb
+++ b/lib/mihari/services/proxies.rb
@@ -61,7 +61,7 @@ def rule_id
       #
       def artifacts
         @artifacts ||= data[:artifacts].map do |data|
-          artifact = Models::Artifact.new(data: data)
+          artifact = Models::Artifact.new(data:)
           artifact.rule_id = rule_id
           artifact.source = source
           artifact
diff --git a/lib/mihari/services/renderer.rb b/lib/mihari/services/renderer.rb
index 6ba4b1de0..99af71058 100644
--- a/lib/mihari/services/renderer.rb
+++ b/lib/mihari/services/renderer.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "tilt/jbuilder"
 
 module Mihari
diff --git a/lib/mihari/services/searchers.rb b/lib/mihari/services/searchers.rb
index 44ac1d55c..065e517db 100644
--- a/lib/mihari/services/searchers.rb
+++ b/lib/mihari/services/searchers.rb
@@ -35,7 +35,7 @@ def call(params)
         ResultValue.new(
           total: klass.count_by_filter(filter),
           results: klass.search_by_filter(filter),
-          filter: filter
+          filter:
         )
       end
 
diff --git a/lib/mihari/sidekiq/application.rb b/lib/mihari/sidekiq/application.rb
index 919f67657..28ad473e7 100644
--- a/lib/mihari/sidekiq/application.rb
+++ b/lib/mihari/sidekiq/application.rb
@@ -5,9 +5,9 @@
 require "mihari/sidekiq/jobs"
 
 Sidekiq.configure_server do |config|
-  config.redis = { url: Mihari.config.sidekiq_redis_url.to_s }
+  config.redis = {url: Mihari.config.sidekiq_redis_url.to_s}
 end
 
 Sidekiq.configure_client do |config|
-  config.redis = { url: Mihari.config.sidekiq_redis_url.to_s }
+  config.redis = {url: Mihari.config.sidekiq_redis_url.to_s}
 end
diff --git a/lib/mihari/structs/censys.rb b/lib/mihari/structs/censys.rb
index b7ed4dab7..be30863d2 100644
--- a/lib/mihari/structs/censys.rb
+++ b/lib/mihari/structs/censys.rb
@@ -48,8 +48,8 @@ def geolocation
           return nil if country.nil?
 
           Mihari::Models::Geolocation.new(
-            country: country,
-            country_code: country_code
+            country:,
+            country_code:
           )
         end
 
@@ -126,10 +126,10 @@ def ports
         def artifact
           Models::Artifact.new(
             data: ip,
-            metadata: metadata,
+            metadata:,
             autonomous_system: autonomous_system.as,
             geolocation: location.geolocation,
-            ports: ports
+            ports:
           )
         end
 
diff --git a/lib/mihari/structs/google_public_dns.rb b/lib/mihari/structs/google_public_dns.rb
index 3227ed438..ac95a9616 100644
--- a/lib/mihari/structs/google_public_dns.rb
+++ b/lib/mihari/structs/google_public_dns.rb
@@ -4,8 +4,8 @@ module Mihari
   module Structs
     module GooglePublicDNS
       INT_TYPE_TO_TYPE =
-        { 1 => :A, 38 => :A6, 28 => :AAAA, 18 => :AFSDB, 255 => :ANY, 42 => :APL, 34 => :ATMA, 252 => :AXFR, 37 => :CERT,
-          5 => :CNAME, 49 => :DHCID, 32_769 => :DLV, 39 => :DNAME, 48 => :DNSKEY, 43 => :DS, 31 => :EID, 102 => :GID, 27 => :GPOS, 13 => :HINFO, 45 => :IPSECKEY, 20 => :ISDN, 251 => :IXFR, 25 => :KEY, 36 => :KX, 29 => :LOC, 254 => :MAILA, 253 => :MAILB, 7 => :MB, 3 => :MD, 4 => :MF, 8 => :MG, 14 => :MINFO, 9 => :MR, 15 => :MX, 35 => :NAPTR, 32 => :NIMLOC, 2 => :NS, 22 => :NSAP, 23 => :NSAP_PTR, 47 => :NSEC, 50 => :NSEC3, 51 => :NSEC3PARAMS, 10 => :NULL, 30 => :NXT, 41 => :OPT, 12 => :PTR, 26 => :PX, 17 => :RP, 46 => :RRSIG, 21 => :RT, 24 => :SIG, 40 => :SINK, 6 => :SOA, 33 => :SRV, 44 => :SSHFP, 250 => :TSIG, 16 => :TXT, 101 => :UID, 100 => :UINFO, 103 => :UNSPEC, 11 => :WKS, 19 => :X25 }.freeze
+        {1 => :A, 38 => :A6, 28 => :AAAA, 18 => :AFSDB, 255 => :ANY, 42 => :APL, 34 => :ATMA, 252 => :AXFR, 37 => :CERT,
+         5 => :CNAME, 49 => :DHCID, 32_769 => :DLV, 39 => :DNAME, 48 => :DNSKEY, 43 => :DS, 31 => :EID, 102 => :GID, 27 => :GPOS, 13 => :HINFO, 45 => :IPSECKEY, 20 => :ISDN, 251 => :IXFR, 25 => :KEY, 36 => :KX, 29 => :LOC, 254 => :MAILA, 253 => :MAILB, 7 => :MB, 3 => :MD, 4 => :MF, 8 => :MG, 14 => :MINFO, 9 => :MR, 15 => :MX, 35 => :NAPTR, 32 => :NIMLOC, 2 => :NS, 22 => :NSAP, 23 => :NSAP_PTR, 47 => :NSEC, 50 => :NSEC3, 51 => :NSEC3PARAMS, 10 => :NULL, 30 => :NXT, 41 => :OPT, 12 => :PTR, 26 => :PX, 17 => :RP, 46 => :RRSIG, 21 => :RT, 24 => :SIG, 40 => :SINK, 6 => :SOA, 33 => :SRV, 44 => :SSHFP, 250 => :TSIG, 16 => :TXT, 101 => :UID, 100 => :UINFO, 103 => :UNSPEC, 11 => :WKS, 19 => :X25}.freeze
 
       class Answer < Dry::Struct
         # @!attribute [r] name
@@ -30,7 +30,7 @@ def from_dynamic!(d)
             new(
               name: d.fetch("name"),
               data: d.fetch("data"),
-              resource_type: resource_type
+              resource_type:
             )
           end
         end
diff --git a/lib/mihari/structs/greynoise.rb b/lib/mihari/structs/greynoise.rb
index 3dfb78370..75e5744bb 100644
--- a/lib/mihari/structs/greynoise.rb
+++ b/lib/mihari/structs/greynoise.rb
@@ -30,8 +30,8 @@ def as
         #
         def geolocation
           Mihari::Models::Geolocation.new(
-            country: country,
-            country_code: country_code
+            country:,
+            country_code:
           )
         end
 
diff --git a/lib/mihari/structs/onyphe.rb b/lib/mihari/structs/onyphe.rb
index 6cbbb7400..3bd20e2df 100644
--- a/lib/mihari/structs/onyphe.rb
+++ b/lib/mihari/structs/onyphe.rb
@@ -29,9 +29,9 @@ class Result < Dry::Struct
         def artifact
           Mihari::Models::Artifact.new(
             data: ip,
-            metadata: metadata,
+            metadata:,
             autonomous_system: as,
-            geolocation: geolocation
+            geolocation:
           )
         end
 
@@ -43,7 +43,7 @@ def geolocation
 
           Mihari::Models::Geolocation.new(
             country: NormalizeCountry(country_code, to: :short),
-            country_code: country_code
+            country_code:
           )
         end
 
diff --git a/lib/mihari/structs/shodan.rb b/lib/mihari/structs/shodan.rb
index 40bf84767..01a87dfef 100644
--- a/lib/mihari/structs/shodan.rb
+++ b/lib/mihari/structs/shodan.rb
@@ -20,7 +20,7 @@ def geolocation
 
           Mihari::Models::Geolocation.new(
             country: country_name,
-            country_code: country_code
+            country_code:
           )
         end
 
@@ -106,7 +106,7 @@ def from_dynamic!(d)
 
             new(
               asn: d["asn"],
-              hostnames: hostnames,
+              hostnames:,
               location: Location.from_dynamic!(d.fetch("location")),
               domains: d.fetch("domains"),
               ip_str: d.fetch("ip_str"),
@@ -205,20 +205,20 @@ def artifacts
 
             ports = collect_ports_by_ip(match.ip_str).map { |port| Models::Port.new(number: port) }
             reverse_dns_names = collect_hostnames_by_ip(match.ip_str).map do |name|
-              Models::ReverseDnsName.new(name: name)
+              Models::ReverseDnsName.new(name:)
             end
-            cpes = collect_cpes_by_ip(match.ip_str).map { |name| Models::CPE.new(name: name) }
-            vulnerabilities = collect_vulns_by_ip(match.ip_str).map { |name| Models::Vulnerability.new(name: name) }
+            cpes = collect_cpes_by_ip(match.ip_str).map { |name| Models::CPE.new(name:) }
+            vulnerabilities = collect_vulns_by_ip(match.ip_str).map { |name| Models::Vulnerability.new(name:) }
 
             Mihari::Models::Artifact.new(
               data: match.ip_str,
-              metadata: metadata,
+              metadata:,
               autonomous_system: match.autonomous_system,
               geolocation: match.location.geolocation,
-              ports: ports,
-              reverse_dns_names: reverse_dns_names,
-              cpes: cpes,
-              vulnerabilities: vulnerabilities
+              ports:,
+              reverse_dns_names:,
+              cpes:,
+              vulnerabilities:
             )
           end
         end
diff --git a/lib/mihari/structs/urlscan.rb b/lib/mihari/structs/urlscan.rb
index 461742255..4571ca272 100644
--- a/lib/mihari/structs/urlscan.rb
+++ b/lib/mihari/structs/urlscan.rb
@@ -53,7 +53,7 @@ class Result < Dry::Struct
         #
         def artifacts
           values = [page.url, page.domain, page.ip].compact
-          values.map { |value| Mihari::Models::Artifact.new(data: value, metadata: metadata) }
+          values.map { |value| Mihari::Models::Artifact.new(data: value, metadata:) }
         end
 
         class << self
diff --git a/lib/mihari/structs/virustotal_intelligence.rb b/lib/mihari/structs/virustotal_intelligence.rb
index eeb265e6b..ad2a7348a 100644
--- a/lib/mihari/structs/virustotal_intelligence.rb
+++ b/lib/mihari/structs/virustotal_intelligence.rb
@@ -56,7 +56,7 @@ def value
         # @return [Mihari::Models::Artifact]
         #
         def artifact
-          Models::Artifact.new(data: value, metadata: metadata)
+          Models::Artifact.new(data: value, metadata:)
         end
 
         class << self
@@ -74,7 +74,7 @@ def from_dynamic!(d)
             new(
               type: d.fetch("type"),
               id: d.fetch("id"),
-              context_attributes: context_attributes,
+              context_attributes:,
               metadata: d
             )
           end
diff --git a/lib/mihari/web/api.rb b/lib/mihari/web/api.rb
index 4194cb4b1..f855b800f 100644
--- a/lib/mihari/web/api.rb
+++ b/lib/mihari/web/api.rb
@@ -24,7 +24,7 @@ class API < Grape::API
       mount Endpoints::Rules
       mount Endpoints::Tags
 
-      add_swagger_documentation(api_version: "v1", info: { title: "Mihari API" })
+      add_swagger_documentation(api_version: "v1", info: {title: "Mihari API"})
     end
   end
 end
diff --git a/lib/mihari/web/application.rb b/lib/mihari/web/application.rb
index 8ffcd0dd9..5cd4e86b4 100644
--- a/lib/mihari/web/application.rb
+++ b/lib/mihari/web/application.rb
@@ -97,7 +97,7 @@ def run!(port: 9292, host: "localhost", threads: "0:5", verbose: false, worker_t
             Host: host,
             Threads: threads,
             Verbose: verbose,
-            worker_timeout: worker_timeout
+            worker_timeout:
           ) do |_|
             Launchy.open("http://#{host}:#{port}") if !Mihari.development? && open
           rescue Launchy::CommandNotFoundError
diff --git a/lib/mihari/web/endpoints/alerts.rb b/lib/mihari/web/endpoints/alerts.rb
index 4a1e38479..01a6594fc 100644
--- a/lib/mihari/web/endpoints/alerts.rb
+++ b/lib/mihari/web/endpoints/alerts.rb
@@ -33,7 +33,7 @@ class Alerts < Grape::API
 
           desc "Get an alert", {
             success: Entities::Alert,
-            failure: [{ code: 404, model: Entities::ErrorMessage }],
+            failure: [{code: 404, model: Entities::ErrorMessage}],
             summary: "Get an alert"
           }
           params do
@@ -46,14 +46,14 @@ class Alerts < Grape::API
 
             case result.failure
             when ActiveRecord::RecordNotFound
-              error!({ message: "ID:#{id} not found" }, 404)
+              error!({message: "ID:#{id} not found"}, 404)
             end
             raise result.failure
           end
 
           desc "Delete an alert", {
-            success: { code: 204, model: Entities::Message },
-            failure: [{ code: 404, model: Entities::ErrorMessage }],
+            success: {code: 204, model: Entities::Message},
+            failure: [{code: 404, model: Entities::ErrorMessage}],
             summary: "Delete an alert"
           }
           params do
@@ -64,26 +64,26 @@ class Alerts < Grape::API
 
             id = params["id"].to_i
             result = Services::AlertDestroyer.result(id)
-            return present({ message: "" }, with: Entities::Message) if result.success?
+            return present({message: ""}, with: Entities::Message) if result.success?
 
             case result.failure
             when ActiveRecord::RecordNotFound
-              error!({ message: "ID:#{id} not found" }, 404)
+              error!({message: "ID:#{id} not found"}, 404)
             end
             raise result.failure
           end
 
           desc "Create an alert", {
-            success: { code: 201, model: Entities::Alert },
+            success: {code: 201, model: Entities::Alert},
             failure: [
-              { code: 404, model: Entities::ErrorMessage }
+              {code: 404, model: Entities::ErrorMessage}
             ],
             summary: "Create an alert"
           }
           params do
-            requires :ruleId, type: String, documentation: { param_type: "body" }
-            requires :artifacts, type: Array, documentation: { type: String, is_array: true, param_type: "body" }
-            optional :source, type: String, documentation: { param_type: "body" }
+            requires :ruleId, type: String, documentation: {param_type: "body"}
+            requires :artifacts, type: Array, documentation: {type: String, is_array: true, param_type: "body"}
+            optional :source, type: String, documentation: {param_type: "body"}
           end
           post "/" do
             status 201
@@ -93,7 +93,7 @@ class Alerts < Grape::API
 
             case result.failure
             when ActiveRecord::RecordNotFound
-              error!({ message: "Rule:#{params["ruleId"]} not found" }, 404)
+              error!({message: "Rule:#{params["ruleId"]} not found"}, 404)
             end
             raise result.failure
           end
diff --git a/lib/mihari/web/endpoints/artifacts.rb b/lib/mihari/web/endpoints/artifacts.rb
index 5e7ece9ee..acf37a4bd 100644
--- a/lib/mihari/web/endpoints/artifacts.rb
+++ b/lib/mihari/web/endpoints/artifacts.rb
@@ -33,7 +33,7 @@ class Artifacts < Grape::API
 
           desc "Get an artifact", {
             success: Entities::Artifact,
-            failure: [{ code: 404, model: Entities::ErrorMessage }],
+            failure: [{code: 404, model: Entities::ErrorMessage}],
             summary: "Get an artifact"
           }
           params do
@@ -46,14 +46,14 @@ class Artifacts < Grape::API
 
             case result.failure
             when ActiveRecord::RecordNotFound
-              error!({ message: "ID:#{id} not found" }, 404)
+              error!({message: "ID:#{id} not found"}, 404)
             end
             raise result.failure
           end
 
           desc "Enrich an artifact", {
-            success: { code: 201, model: Entities::Message },
-            failure: [{ code: 400, model: Entities::ErrorMessage }, { code: 404, model: Entities::ErrorMessage }],
+            success: {code: 201, model: Entities::Message},
+            failure: [{code: 400, model: Entities::ErrorMessage}, {code: 404, model: Entities::ErrorMessage}],
             summary: "Enrich an artifact"
           }
           params do
@@ -75,20 +75,20 @@ class Artifacts < Grape::API
             end.to_result
 
             message = queued ? "ID:#{id}'s enrichment is queued" : "ID:#{id}'s enrichment is successful"
-            return present({ message: message, queued: queued }, with: Entities::QueueMessage) if result.success?
+            return present({message:, queued:}, with: Entities::QueueMessage) if result.success?
 
             case result.failure
             when UnenrichableError
-              error!({ message: result.failure.message }, 400)
+              error!({message: result.failure.message}, 400)
             when ActiveRecord::RecordNotFound
-              error!({ message: "ID:#{id} not found" }, 404)
+              error!({message: "ID:#{id} not found"}, 404)
             end
             raise result.failure
           end
 
           desc "Delete an artifact", {
-            success: { code: 204, model: Entities::Message },
-            failure: [{ code: 404, model: Entities::ErrorMessage }],
+            success: {code: 204, model: Entities::Message},
+            failure: [{code: 404, model: Entities::ErrorMessage}],
             summary: "Delete an artifact"
           }
           params do
@@ -99,11 +99,11 @@ class Artifacts < Grape::API
 
             id = params["id"].to_i
             result = Services::ArtifactDestroyer.result(id)
-            return present({ message: "" }, with: Entities::Message) if result.success?
+            return present({message: ""}, with: Entities::Message) if result.success?
 
             case result.failure
             when ActiveRecord::RecordNotFound
-              error!({ message: "ID:#{id} not found" }, 404)
+              error!({message: "ID:#{id} not found"}, 404)
             end
             raise result.failure
           end
diff --git a/lib/mihari/web/endpoints/ip_addresses.rb b/lib/mihari/web/endpoints/ip_addresses.rb
index c15d9a1ac..d654a823d 100644
--- a/lib/mihari/web/endpoints/ip_addresses.rb
+++ b/lib/mihari/web/endpoints/ip_addresses.rb
@@ -11,15 +11,15 @@ class IPAddresses < Grape::API
           desc "Get IP address data", {
             success: Entities::IPAddress,
             failure: [
-              { code: 404, model: Entities::ErrorMessage },
-              { code: 422, model: Entities::ErrorMessage }
+              {code: 404, model: Entities::ErrorMessage},
+              {code: 422, model: Entities::ErrorMessage}
             ],
             summary: "Get IP address data"
           }
           params do
             requires :ip, type: String
           end
-          get "/:ip", requirements: { ip: %r{[^/]+} } do
+          get "/:ip", requirements: {ip: %r{[^/]+}} do
             ip = params[:ip].to_s
             result = Services::IPGetter.result(ip)
             if result.success?
@@ -37,8 +37,8 @@ class IPAddresses < Grape::API
             failure = result.failure
             case failure
             when Mihari::StatusError
-              error!({ message: "IP:#{ip} not found" }, failure.status_code) if failure.status_code == 404
-              error!({ message: "IP format invalid" }, failure.status_code) if failure.status_code == 422
+              error!({message: "IP:#{ip} not found"}, failure.status_code) if failure.status_code == 404
+              error!({message: "IP format invalid"}, failure.status_code) if failure.status_code == 422
             end
             raise failure
           end
diff --git a/lib/mihari/web/endpoints/rules.rb b/lib/mihari/web/endpoints/rules.rb
index fc13f00c3..0303f8fb8 100644
--- a/lib/mihari/web/endpoints/rules.rb
+++ b/lib/mihari/web/endpoints/rules.rb
@@ -51,7 +51,7 @@ def call(yaml, overwrite: true)
 
           desc "Get a rule", {
             success: Entities::Rule,
-            failure: [{ code: 404, model: Entities::ErrorMessage }],
+            failure: [{code: 404, model: Entities::ErrorMessage}],
             summary: "Get a rule"
           }
           params do
@@ -64,14 +64,14 @@ def call(yaml, overwrite: true)
 
             case result.failure
             when ActiveRecord::RecordNotFound
-              error!({ message: "ID:#{id} not found" }, 404)
+              error!({message: "ID:#{id} not found"}, 404)
             end
             raise result.failure
           end
 
           desc "Search by a rule", {
-            success: { code: 201, model: Entities::QueueMessage },
-            failure: [{ code: 404, model: Entities::ErrorMessage }],
+            success: {code: 201, model: Entities::QueueMessage},
+            failure: [{code: 404, model: Entities::ErrorMessage}],
             summary: "Run a rule"
           }
           params do
@@ -95,25 +95,25 @@ def call(yaml, overwrite: true)
             end.to_result
 
             message = queued ? "ID:#{id}'s search is queued" : "ID:#{id}'s search is successful"
-            return present({ message: message, queued: queued }, with: Entities::QueueMessage) if result.success?
+            return present({message:, queued:}, with: Entities::QueueMessage) if result.success?
 
             case result.failure
             when ActiveRecord::RecordNotFound
-              error!({ message: "ID:#{id} not found" }, 404)
+              error!({message: "ID:#{id} not found"}, 404)
             end
             raise result.failure
           end
 
           desc "Create a rule", {
-            success: { code: 201, model: Entities::Rule },
+            success: {code: 201, model: Entities::Rule},
             failure: [
-              { code: 400, model: Entities::ErrorMessage },
-              { code: 422, model: Entities::ErrorMessage }
+              {code: 400, model: Entities::ErrorMessage},
+              {code: 422, model: Entities::ErrorMessage}
             ],
             summary: "Create a rule"
           }
           params do
-            requires :yaml, type: String, documentation: { param_type: "body" }
+            requires :yaml, type: String, documentation: {param_type: "body"}
           end
           post "/" do
             status 201
@@ -126,25 +126,25 @@ def call(yaml, overwrite: true)
             failure = result.failure
             case failure
             when Psych::SyntaxError
-              error!({ message: failure.message }, 422)
+              error!({message: failure.message}, 422)
             when ValidationError
-              error!({ message: "Rule format invalid", detail: failure.errors.to_h }, 422)
+              error!({message: "Rule format invalid", detail: failure.errors.to_h}, 422)
             when IntegrityError
-              error!({ message: failure.message }, 400)
+              error!({message: failure.message}, 400)
             end
             raise failure
           end
 
           desc "Update a rule", {
-            success: { code: 201, model: Entities::Rule },
+            success: {code: 201, model: Entities::Rule},
             failure: [
-              { code: 404, model: Entities::ErrorMessage },
-              { code: 422, model: Entities::ErrorMessage }
+              {code: 404, model: Entities::ErrorMessage},
+              {code: 422, model: Entities::ErrorMessage}
             ],
             summary: "Update a rule"
           }
           params do
-            requires :yaml, type: String, documentation: { param_type: "body" }
+            requires :yaml, type: String, documentation: {param_type: "body"}
           end
           put "/" do
             status 201
@@ -157,18 +157,18 @@ def call(yaml, overwrite: true)
             failure = result.failure
             case failure
             when ActiveRecord::RecordNotFound
-              error!({ message: "Rule not found" }, 404)
+              error!({message: "Rule not found"}, 404)
             when Psych::SyntaxError
-              error!({ message: failure.message }, 422)
+              error!({message: failure.message}, 422)
             when ValidationError
-              error!({ message: "Rule format invalid", detail: failure.errors.to_h }, 422)
+              error!({message: "Rule format invalid", detail: failure.errors.to_h}, 422)
             end
             raise failure
           end
 
           desc "Delete a rule", {
-            success: { code: 204, model: Entities::Message },
-            failure: [{ code: 404, model: Entities::ErrorMessage }],
+            success: {code: 204, model: Entities::Message},
+            failure: [{code: 404, model: Entities::ErrorMessage}],
             summary: "Delete a rule"
           }
           params do
@@ -179,11 +179,11 @@ def call(yaml, overwrite: true)
 
             id = params[:id].to_s
             result = Services::RuleDestroyer.result(id)
-            return present({ message: "ID:#{id} is deleted" }, with: Entities::Message) if result.success?
+            return present({message: "ID:#{id} is deleted"}, with: Entities::Message) if result.success?
 
             case result.failure
             when ActiveRecord::RecordNotFound
-              error!({ message: "ID:#{id} not found" }, 404)
+              error!({message: "ID:#{id} not found"}, 404)
             end
             raise result.failure
           end
diff --git a/lib/mihari/web/endpoints/tags.rb b/lib/mihari/web/endpoints/tags.rb
index 7ae3e1956..74dcc1fa1 100644
--- a/lib/mihari/web/endpoints/tags.rb
+++ b/lib/mihari/web/endpoints/tags.rb
@@ -32,8 +32,8 @@ class Tags < Grape::API
           end
 
           desc "Delete a tag", {
-            success: { code: 204, model: Entities::Message },
-            failure: [{ code: 404, model: Entities::ErrorMessage }],
+            success: {code: 204, model: Entities::Message},
+            failure: [{code: 404, model: Entities::ErrorMessage}],
             summary: "Delete a tag"
           }
           params do
@@ -44,11 +44,11 @@ class Tags < Grape::API
 
             id = params[:id].to_i
             result = Services::TagDestroyer.result(id)
-            return present({ message: "" }, with: Entities::Message) if result.success?
+            return present({message: ""}, with: Entities::Message) if result.success?
 
             case result.failure
             when ActiveRecord::RecordNotFound
-              error!({ message: "ID:#{id} not found" }, 404)
+              error!({message: "ID:#{id} not found"}, 404)
             end
             raise result.failure
           end
diff --git a/spec/analyzers/feed_spec.rb b/spec/analyzers/feed_spec.rb
index c0695a8db..448876c7c 100644
--- a/spec/analyzers/feed_spec.rb
+++ b/spec/analyzers/feed_spec.rb
@@ -7,8 +7,8 @@
         described_class.new(
           "https://threatfox-api.abuse.ch/api/v1/",
           method: "POST",
-          json: { query: "get_iocs", days: 1 },
-          headers: { "api-key": ENV["THREATFOX_API_KEY"] },
+          json: {query: "get_iocs", days: 1},
+          headers: {"api-key": ENV["THREATFOX_API_KEY"]},
           selector: "data.map(&:ioc)"
         )
       end
diff --git a/spec/analyzers/hunterhow_spec.rb b/spec/analyzers/hunterhow_spec.rb
index 0a2a7b0d4..1d18174a5 100644
--- a/spec/analyzers/hunterhow_spec.rb
+++ b/spec/analyzers/hunterhow_spec.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 RSpec.describe Mihari::Analyzers::HunterHow, :vcr do
-  subject(:analyzer) { described_class.new(query, start_time: start_time, end_time: end_time) }
+  subject(:analyzer) { described_class.new(query, start_time:, end_time:) }
 
   let!(:query) { 'ip:"1.1.1.1"' }
   let!(:start_time) { Date.parse "2023-08-01" }
diff --git a/spec/analyzers/zoomeye_spec.rb b/spec/analyzers/zoomeye_spec.rb
index 8e816f6dc..586800c67 100644
--- a/spec/analyzers/zoomeye_spec.rb
+++ b/spec/analyzers/zoomeye_spec.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 RSpec.describe Mihari::Analyzers::ZoomEye, :vcr do
-  subject(:analyzer) { described_class.new(query, type: type) }
+  subject(:analyzer) { described_class.new(query, type:) }
 
   let(:type) { "host" }
 
diff --git a/spec/cli/alert_spec.rb b/spec/cli/alert_spec.rb
index 732912782..1199711ee 100644
--- a/spec/cli/alert_spec.rb
+++ b/spec/cli/alert_spec.rb
@@ -15,7 +15,7 @@
   describe "#list-transform" do
     it do
       expect do
-        described_class.new.invoke(:list_transform, [], { template: "json.array! results.map(&:id)" })
+        described_class.new.invoke(:list_transform, [], {template: "json.array! results.map(&:id)"})
       end.to output(include(alert.id.to_s)).to_stdout
     end
   end
@@ -29,7 +29,7 @@
   describe "#create" do
     before do
       @file = Tempfile.new("dummy")
-      @file.write(YAML.dump({ rule_id: rule.id, artifacts: %w[1.1.1.1] }))
+      @file.write(YAML.dump({rule_id: rule.id, artifacts: %w[1.1.1.1]}))
       @file.rewind
     end
 
diff --git a/spec/cli/artifact_spec.rb b/spec/cli/artifact_spec.rb
index 940411ac7..e41107173 100644
--- a/spec/cli/artifact_spec.rb
+++ b/spec/cli/artifact_spec.rb
@@ -12,7 +12,7 @@
   describe "#list-transform" do
     it do
       expect do
-        described_class.new.invoke(:list_transform, [], { template: "json.array! results.map(&:id)" })
+        described_class.new.invoke(:list_transform, [], {template: "json.array! results.map(&:id)"})
       end.to output(include(artifact.id.to_s)).to_stdout
     end
   end
diff --git a/spec/cli/rule_spec.rb b/spec/cli/rule_spec.rb
index 73b61a111..54334dba8 100644
--- a/spec/cli/rule_spec.rb
+++ b/spec/cli/rule_spec.rb
@@ -43,7 +43,7 @@
   describe "#list-transform" do
     it do
       expect do
-        described_class.new.invoke(:list_transform, [], { template: "json.array! results.map(&:id)" })
+        described_class.new.invoke(:list_transform, [], {template: "json.array! results.map(&:id)"})
       end.to output(include(rule.id.to_s)).to_stdout
     end
   end
diff --git a/spec/cli/tag_spec.rb b/spec/cli/tag_spec.rb
index bb30588f5..3239d4edb 100644
--- a/spec/cli/tag_spec.rb
+++ b/spec/cli/tag_spec.rb
@@ -13,7 +13,7 @@
   describe "#list-transform" do
     it do
       expect do
-        described_class.new.invoke(:list_transform, [], { template: "json.array! results.map(&:id)" })
+        described_class.new.invoke(:list_transform, [], {template: "json.array! results.map(&:id)"})
       end.to output(include(tag.id.to_s)).to_stdout
     end
   end
diff --git a/spec/commands/search_spec.rb b/spec/commands/search_spec.rb
index a296781f4..a0036f6a9 100644
--- a/spec/commands/search_spec.rb
+++ b/spec/commands/search_spec.rb
@@ -18,7 +18,7 @@ class SearchCLI < Mihari::CLI::Base
 
   describe "#search" do
     it do
-      expect { SearchCLI.new.invoke(:search, [path], { force_overwrite: true }) }.to output(include(rule.id)).to_stdout
+      expect { SearchCLI.new.invoke(:search, [path], {force_overwrite: true}) }.to output(include(rule.id)).to_stdout
     end
   end
 end
diff --git a/spec/concerns/error_unwrappable_spec.rb b/spec/concerns/error_unwrappable_spec.rb
index 57070169f..1c5549883 100644
--- a/spec/concerns/error_unwrappable_spec.rb
+++ b/spec/concerns/error_unwrappable_spec.rb
@@ -26,21 +26,21 @@ def raise_error
   describe "#unwrap_error" do
     it do
       subject.raise_try_error
-    rescue StandardError => e
+    rescue => e
       expect(e).not_to be_a ZeroDivisionError
       expect(subject.unwrap_error(e)).to be_a ZeroDivisionError
     end
 
     it do
       subject.raise_result_error
-    rescue StandardError => e
+    rescue => e
       expect(e).not_to be_a ZeroDivisionError
       expect(subject.unwrap_error(e)).to be_a ZeroDivisionError
     end
 
     it do
       subject.raise_error
-    rescue StandardError => e
+    rescue => e
       expect(e).to be_a ZeroDivisionError
       expect(subject.unwrap_error(e)).to be_a ZeroDivisionError
     end
diff --git a/spec/concerns/retriable_spec.rb b/spec/concerns/retriable_spec.rb
index b23eb04a7..32558d431 100644
--- a/spec/concerns/retriable_spec.rb
+++ b/spec/concerns/retriable_spec.rb
@@ -12,7 +12,7 @@ def initialize
   end
 
   def retriable_get(url)
-    retry_on_error(times: times, interval: interval) do
+    retry_on_error(times:, interval:) do
       get url
     end
   end
diff --git a/spec/emitters/database_spec.rb b/spec/emitters/database_spec.rb
index dbf317e0c..191694c0e 100644
--- a/spec/emitters/database_spec.rb
+++ b/spec/emitters/database_spec.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 RSpec.describe Mihari::Emitters::Database do
-  subject(:emitter) { described_class.new(rule: rule) }
+  subject(:emitter) { described_class.new(rule:) }
 
   let_it_be(:rule) { Mihari::Rule.from_model FactoryBot.create(:rule) }
   let!(:artifacts) { [Mihari::Models::Artifact.new(data: "1.1.1.1")] }
diff --git a/spec/emitters/misp_spec.rb b/spec/emitters/misp_spec.rb
index 94eeb8431..57bc42aa8 100644
--- a/spec/emitters/misp_spec.rb
+++ b/spec/emitters/misp_spec.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 RSpec.describe Mihari::Emitters::MISP, :vcr do
-  subject(:emitter) { described_class.new(rule: rule) }
+  subject(:emitter) { described_class.new(rule:) }
 
   include_context "with mocked logger"
 
diff --git a/spec/emitters/slack_spec.rb b/spec/emitters/slack_spec.rb
index 79abb6577..0d4184f0b 100644
--- a/spec/emitters/slack_spec.rb
+++ b/spec/emitters/slack_spec.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 RSpec.describe Mihari::Emitters::Slack do
-  subject(:emitter) { described_class.new(rule: rule) }
+  subject(:emitter) { described_class.new(rule:) }
 
   let_it_be(:rule) { Mihari::Rule.from_model FactoryBot.create(:rule) }
   let!(:artifacts) do
diff --git a/spec/emitters/the_hive_spec.rb b/spec/emitters/the_hive_spec.rb
index 2c9d27987..159ea3b2b 100644
--- a/spec/emitters/the_hive_spec.rb
+++ b/spec/emitters/the_hive_spec.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 RSpec.describe Mihari::Emitters::TheHive, :vcr do
-  subject(:emitter) { described_class.new(rule: rule) }
+  subject(:emitter) { described_class.new(rule:) }
 
   include_context "with mocked logger"
 
@@ -30,7 +30,7 @@
 
   describe "#call" do
     let!(:mock_client) { instance_double("client") }
-    let!(:mocked_emitter) { described_class.new(rule: rule) }
+    let!(:mocked_emitter) { described_class.new(rule:) }
 
     before do
       allow(mocked_emitter).to receive(:client).and_return(mock_client)
diff --git a/spec/emitters/webhook_spec.rb b/spec/emitters/webhook_spec.rb
index ebde8805b..5b653b445 100644
--- a/spec/emitters/webhook_spec.rb
+++ b/spec/emitters/webhook_spec.rb
@@ -11,7 +11,7 @@
 
   describe "#configured?" do
     context "without URL" do
-      let(:emitter) { described_class.new(rule: rule) }
+      let(:emitter) { described_class.new(rule:) }
 
       it do
         expect(emitter.configured?).to be false
@@ -19,7 +19,7 @@
     end
 
     context "with URL" do
-      let(:emitter) { described_class.new(rule: rule, url: url) }
+      let(:emitter) { described_class.new(rule:, url:) }
 
       it do
         expect(emitter.configured?).to be true
@@ -30,9 +30,9 @@
   describe "#call" do
     let(:emitter) do
       described_class.new(
-        rule: rule,
-        url: url,
-        headers: { "Content-Type": "application/json" }
+        rule:,
+        url:,
+        headers: {"Content-Type": "application/json"}
       )
     end
 
@@ -47,10 +47,10 @@
     context "with a template file" do
       let(:emitter) do
         described_class.new(
-          rule: rule,
-          url: url,
+          rule:,
+          url:,
           template: "spec/fixtures/templates/test.json.jbuilder",
-          headers: { "Content-Type": "application/json" }
+          headers: {"Content-Type": "application/json"}
         )
       end
 
@@ -63,7 +63,7 @@
   end
 
   describe "#target" do
-    let(:emitter) { described_class.new(rule: rule, url: url) }
+    let(:emitter) { described_class.new(rule:, url:) }
 
     it do
       expect(emitter.target).to be_a(String)
diff --git a/spec/factories/alerts.rb b/spec/factories/alerts.rb
index a143ef094..8e9bc509e 100644
--- a/spec/factories/alerts.rb
+++ b/spec/factories/alerts.rb
@@ -6,11 +6,11 @@
 
     factory :alert_with_artifacts do
       after(:create) do |alert, _context|
-        create(:artifact, :ip, alert: alert)
-        create(:artifact, :domain, alert: alert)
-        create(:artifact, :url, alert: alert)
-        create(:artifact, :mail, alert: alert)
-        create(:artifact, :hash, alert: alert)
+        create(:artifact, :ip, alert:)
+        create(:artifact, :domain, alert:)
+        create(:artifact, :url, alert:)
+        create(:artifact, :mail, alert:)
+        create(:artifact, :hash, alert:)
       end
     end
   end
diff --git a/spec/factories/artifacts.rb b/spec/factories/artifacts.rb
index 2fd211a0c..0a24667fb 100644
--- a/spec/factories/artifacts.rb
+++ b/spec/factories/artifacts.rb
@@ -54,12 +54,12 @@
     after(:create) do |artifact|
       case artifact.data_type
       when "ip"
-        create(:autonomous_system, artifact: artifact)
-        create_list(:reverse_dns_name, 1, artifact: artifact)
+        create(:autonomous_system, artifact:)
+        create_list(:reverse_dns_name, 1, artifact:)
       when "domain"
-        create_list(:dns_record, 1, artifact: artifact)
+        create_list(:dns_record, 1, artifact:)
       when "url"
-        create_list(:dns_record, 1, artifact: artifact)
+        create_list(:dns_record, 1, artifact:)
       end
     end
   end
diff --git a/spec/factories/rules.rb b/spec/factories/rules.rb
index 530fc6638..2541aa05d 100644
--- a/spec/factories/rules.rb
+++ b/spec/factories/rules.rb
@@ -8,12 +8,12 @@
     tags { build_list :tag, 1 }
     data do
       {
-        id: id,
-        title: title,
-        description: description,
+        id:,
+        title:,
+        description:,
         queries: [],
         tags: [],
-        emitters: [{ emitter: "database" }]
+        emitters: [{emitter: "database"}]
       }
     end
 
@@ -23,7 +23,7 @@
       end
 
       after(:create) do |rule, context|
-        create_list(:alert_with_artifacts, context.alerts_count, rule: rule)
+        create_list(:alert_with_artifacts, context.alerts_count, rule:)
       end
     end
   end
diff --git a/spec/fixtures/templates/test.json.jbuilder b/spec/fixtures/templates/test.json.jbuilder
index 7e614c50b..0d6096be5 100644
--- a/spec/fixtures/templates/test.json.jbuilder
+++ b/spec/fixtures/templates/test.json.jbuilder
@@ -1 +1,3 @@
+# frozen_string_literal: true
+
 json.id rule.id
diff --git a/spec/http_spec.rb b/spec/http_spec.rb
index 79ba47745..a32fdd246 100644
--- a/spec/http_spec.rb
+++ b/spec/http_spec.rb
@@ -31,22 +31,22 @@
 
   describe ".post" do
     context "with application/x-www-form-urlencoded" do
-      let!(:form) { { foo: "bar" } }
-      let(:headers) { { "content-type": "application/x-www-form-urlencoded" } }
+      let!(:form) { {foo: "bar"} }
+      let(:headers) { {"content-type": "application/x-www-form-urlencoded"} }
 
       it do
-        res = described_class.build(headers: headers).post("#{server.base_url}/post", form: form)
+        res = described_class.build(headers:).post("#{server.base_url}/post", form:)
         data = JSON.parse(res.body.to_s)
         expect(data.dig("form", "foo")).to eq("bar")
       end
     end
 
     context "with application/json" do
-      let!(:json) { { foo: "bar" } }
-      let(:headers) { { "content-type": "application/json" } }
+      let!(:json) { {foo: "bar"} }
+      let(:headers) { {"content-type": "application/json"} }
 
       it do
-        res = described_class.build(headers: headers).post("#{server.base_url}/post", json: json)
+        res = described_class.build(headers:).post("#{server.base_url}/post", json:)
         data = JSON.parse(res.body.to_s)
         inner_data = JSON.parse(data["data"])
         expect(inner_data["foo"]).to eq("bar")
diff --git a/spec/mihari_spec.rb b/spec/mihari_spec.rb
index fdda416ca..a36136f88 100644
--- a/spec/mihari_spec.rb
+++ b/spec/mihari_spec.rb
@@ -11,13 +11,13 @@
 
   describe "#sidekiq?" do
     it "returns false in RSpec" do
-      expect(Mihari.sidekiq?).to eq(false)
+      expect(described_class.sidekiq?).to eq(false)
     end
   end
 
   describe "#puma?" do
     it "returns false in RSpec" do
-      expect(Mihari.puma?).to eq(false)
+      expect(described_class.puma?).to eq(false)
     end
   end
 end
diff --git a/spec/models/artifact_spec.rb b/spec/models/artifact_spec.rb
index 560cddbf2..f320cedc1 100644
--- a/spec/models/artifact_spec.rb
+++ b/spec/models/artifact_spec.rb
@@ -49,7 +49,7 @@
         obj = described_class.new(data: artifact.data, alert_id: alert.id)
         obj.rule_id = rule.id
 
-        expect(obj.unique?(base_time: base_time, artifact_ttl: artifact_ttl)).to be false
+        expect(obj.unique?(base_time:, artifact_ttl:)).to be false
       end
 
       it do
@@ -58,7 +58,7 @@
         end
 
         obj = described_class.new(data: artifact.data, alert_id: alert.id)
-        expect(obj.unique?(base_time: base_time, artifact_ttl: artifact_ttl)).to be true
+        expect(obj.unique?(base_time:, artifact_ttl:)).to be true
       end
     end
   end
diff --git a/spec/rule_spec.rb b/spec/rule_spec.rb
index 05dacc109..5c5e6ed80 100644
--- a/spec/rule_spec.rb
+++ b/spec/rule_spec.rb
@@ -10,23 +10,23 @@
   let!(:tags) { %w[test] }
   let(:falsepositives) { [] }
   let(:data_types) { Mihari::DEFAULT_DATA_TYPES }
-  let!(:emitters) { [{ emitter: "database" }] }
+  let!(:emitters) { [{emitter: "database"}] }
   let!(:created_on) { Date.today }
   let!(:updated_on) { Date.today }
   let!(:artifact_ttl) { 0 }
   let(:rule) do
     described_class.new(
-      title: title,
-      description: description,
-      tags: tags,
-      queries: queries,
-      id: id,
-      data_types: data_types,
-      falsepositives: falsepositives,
-      emitters: emitters,
-      created_on: created_on,
-      updated_on: updated_on,
-      artifact_ttl: artifact_ttl
+      title:,
+      description:,
+      tags:,
+      queries:,
+      id:,
+      data_types:,
+      falsepositives:,
+      emitters:,
+      created_on:,
+      updated_on:,
+      artifact_ttl:
     )
   end
 
@@ -100,7 +100,7 @@
   context "with an invalid analyzer" do
     let(:queries) do
       [
-        { analyzer: "shodan", query: "foo" }
+        {analyzer: "shodan", query: "foo"}
       ]
     end
 
diff --git a/spec/schemas/rule_spec.rb b/spec/schemas/rule_spec.rb
index 7ee0e9b8c..cf8452d93 100644
--- a/spec/schemas/rule_spec.rb
+++ b/spec/schemas/rule_spec.rb
@@ -14,15 +14,15 @@
   let(:artifact_ttl) { nil }
   let(:data) do
     {
-      id: id,
-      description: description,
-      title: title,
-      queries: queries,
-      emitters: emitters,
-      enrichers: enrichers,
-      falsepositives: falsepositives,
-      data_types: data_types,
-      artifact_ttl: artifact_ttl
+      id:,
+      description:,
+      title:,
+      queries:,
+      emitters:,
+      enrichers:,
+      falsepositives:,
+      data_types:,
+      artifact_ttl:
     }.compact
   end
 
@@ -39,7 +39,7 @@
       let(:queries) do
         analyzers = Mihari.analyzer_to_class.keys - %w[zoomeye crtsh feed hunterhow]
         analyzers.map do |analyzer|
-          { analyzer: analyzer, query: "foo" }
+          {analyzer:, query: "foo"}
         end
       end
 
@@ -52,9 +52,9 @@
     context "with analyzers need additional options" do
       let(:queries) do
         [
-          { analyzer: "crtsh", query: "foo", exclude_expired: true },
-          { analyzer: "zoomeye", query: "foo", type: "host" },
-          { analyzer: "zoomeye", query: "foo", type: "host", options: { interval: 10 } }
+          {analyzer: "crtsh", query: "foo", exclude_expired: true},
+          {analyzer: "zoomeye", query: "foo", type: "host"},
+          {analyzer: "zoomeye", query: "foo", type: "host", options: {interval: 10}}
         ]
       end
 
@@ -75,7 +75,7 @@
   end
 
   context "with invalid analyzer name" do
-    let(:queries) { [{ analyzer: "foo", query: "foo" }] }
+    let(:queries) { [{analyzer: "foo", query: "foo"}] }
 
     it do
       result = contract.call(**data)
@@ -86,9 +86,9 @@
   context "with invalid options" do
     let(:queries) do
       [
-        { analyzer: "shodan", query: "foo" },
-        { analyzer: "crtsh", query: "foo", exclude_expired: 1 }, # should be bool
-        { analyzer: "zoomeye", query: "foo", type: "bar" } # should be any of host or web
+        {analyzer: "shodan", query: "foo"},
+        {analyzer: "crtsh", query: "foo", exclude_expired: 1}, # should be bool
+        {analyzer: "zoomeye", query: "foo", type: "bar"} # should be any of host or web
       ]
     end
 
@@ -144,7 +144,7 @@
   end
 
   context "with invalid emitter name" do
-    let(:emitters) { [{ emitter: "foo" }] }
+    let(:emitters) { [{emitter: "foo"}] }
 
     it do
       result = contract.call(**data)
@@ -153,11 +153,11 @@
   end
 
   context "without having database emitter" do
-    let(:emitters) { [{ emitter: "misp" }] }
+    let(:emitters) { [{emitter: "misp"}] }
 
     it do
       result = contract.call(**data)
-      expect(result.errors.to_h).to eq({ emitters: ["Emitter:database should be included in emitters"] })
+      expect(result.errors.to_h).to eq({emitters: ["Emitter:database should be included in emitters"]})
     end
   end
 end
diff --git a/spec/services/feed_parser_spec.rb b/spec/services/feed_parser_spec.rb
index 36975ca92..48447542e 100644
--- a/spec/services/feed_parser_spec.rb
+++ b/spec/services/feed_parser_spec.rb
@@ -4,7 +4,7 @@
   let!(:data) do
     {
       a: %w[a b c],
-      b: [{ foo: "bar", bar: "foo" }, { foo: "foo", bar: "bar" }],
+      b: [{foo: "bar", bar: "foo"}, {foo: "foo", bar: "bar"}],
       c: [%w[1 2 3], %w[4 5 6], %w[7 8 9]]
     }
   end
diff --git a/spec/support/httpbin.rb b/spec/support/httpbin.rb
index e1ec86ac5..d4b17a21c 100644
--- a/spec/support/httpbin.rb
+++ b/spec/support/httpbin.rb
@@ -56,28 +56,28 @@ def body
 
   def body_payload
     return {} if body == ""
-    return { data: body, files: {}, form: {}, json: JSON.parse(body) } if json?
-    return { data: "", files: {}, form: Rack::Utils.parse_nested_query(body), json: nil } if form_data?
+    return {data: body, files: {}, form: {}, json: JSON.parse(body)} if json?
+    return {data: "", files: {}, form: Rack::Utils.parse_nested_query(body), json: nil} if form_data?
 
-    { data: body, files: {}, form: {}, json: nil }
+    {data: body, files: {}, form: {}, json: nil}
   end
 
   def ok_response
-    payload = body_payload.merge(args: query_string, headers: headers, origin: origin, url: url)
+    payload = body_payload.merge(args: query_string, headers:, origin:, url:)
 
-    ["200", { "Content-Type" => "application/json" }, [JSON.generate(payload)]]
-    ["200", { "Content-Type" => "text/plain" }, [JSON.generate(payload)]]
+    ["200", {"Content-Type" => "application/json"}, [JSON.generate(payload)]]
+    ["200", {"Content-Type" => "text/plain"}, [JSON.generate(payload)]]
   end
 
   def status_response(status)
-    [status, { "Content-Type" => "text/plain" }, [JSON.generate({})]]
+    [status, {"Content-Type" => "text/plain"}, [JSON.generate({})]]
   end
 
   def error_404
-    ["404", { "Content-Type" => "application/json" }, [JSON.generate({})]]
+    ["404", {"Content-Type" => "application/json"}, [JSON.generate({})]]
   end
 
   def error_405
-    ["405", { "Content-Type" => "application/json" }, [JSON.generate({})]]
+    ["405", {"Content-Type" => "application/json"}, [JSON.generate({})]]
   end
 end
diff --git a/spec/support/shared_contexts/sidekiq_context.rb b/spec/support/shared_contexts/sidekiq_context.rb
index 23ef5ab14..e86ed74a2 100644
--- a/spec/support/shared_contexts/sidekiq_context.rb
+++ b/spec/support/shared_contexts/sidekiq_context.rb
@@ -3,21 +3,21 @@
 RSpec.shared_context "with faked Sidekiq configuration" do
   before(:all) do
     Sidekiq.configure_server do |config|
-      config.redis = { url: "redis://localhost:6379" }
+      config.redis = {url: "redis://localhost:6379"}
     end
 
     Sidekiq.configure_client do |config|
-      config.redis = { url: "redis://localhost:6379" }
+      config.redis = {url: "redis://localhost:6379"}
     end
   end
 
   after(:all) do
     Sidekiq.configure_server do |config|
-      config.redis = { url: Mihari.config.sidekiq_redis_url.to_s }
+      config.redis = {url: Mihari.config.sidekiq_redis_url.to_s}
     end
 
     Sidekiq.configure_client do |config|
-      config.redis = { url: Mihari.config.sidekiq_redis_url.to_s }
+      config.redis = {url: Mihari.config.sidekiq_redis_url.to_s}
     end
   end
 end
diff --git a/spec/web/endpoints/alerts_spec.rb b/spec/web/endpoints/alerts_spec.rb
index b2f879c37..9ef47e11d 100644
--- a/spec/web/endpoints/alerts_spec.rb
+++ b/spec/web/endpoints/alerts_spec.rb
@@ -39,7 +39,7 @@ def app
 
     context "with invalid page type" do
       it "returns 400" do
-        get "/api/alerts", { page: "foo" }
+        get "/api/alerts", {page: "foo"}
         expect(last_response.status).to eq(400)
       end
     end
@@ -63,13 +63,13 @@ def app
   describe "post /api/alerts" do
     context "with invalid format" do
       it "returns 400" do
-        post("/api/alerts/", { foo: "bar" }.to_json, "CONTENT_TYPE" => "application/json")
+        post("/api/alerts/", {foo: "bar"}.to_json, "CONTENT_TYPE" => "application/json")
         expect(last_response.status).to eq(400)
       end
     end
 
     context "with valid params" do
-      let!(:payload) { { ruleId: rule.id, artifacts: ["1.1.1.1"] } }
+      let!(:payload) { {ruleId: rule.id, artifacts: ["1.1.1.1"]} }
 
       it "returns 201" do
         post("/api/alerts/", payload.to_json, "CONTENT_TYPE" => "application/json")
diff --git a/spec/web/endpoints/rules_spec.rb b/spec/web/endpoints/rules_spec.rb
index 54af3c406..30f24fe8f 100644
--- a/spec/web/endpoints/rules_spec.rb
+++ b/spec/web/endpoints/rules_spec.rb
@@ -58,7 +58,7 @@ def app
         data["title"] = title
       end
     end
-    let(:payload) { { yaml: data.to_yaml } }
+    let(:payload) { {yaml: data.to_yaml} }
 
     it "returns 204" do
       put("/api/rules/", payload.to_json, "CONTENT_TYPE" => "application/json")
@@ -89,7 +89,7 @@ def app
         data["id"] = Faker::Internet.unique.uuid
       end
     end
-    let!(:payload) { { yaml: data.to_yaml } }
+    let!(:payload) { {yaml: data.to_yaml} }
 
     it "returns 201" do
       post("/api/rules/", payload.to_json, "CONTENT_TYPE" => "application/json")
@@ -105,14 +105,14 @@ def app
 
     context "with invalid YAML format" do
       it "returns 422" do
-        post("/api/rules/", { yaml: { foo: "bar" }.to_yaml }.to_json, "CONTENT_TYPE" => "application/json")
+        post("/api/rules/", {yaml: {foo: "bar"}.to_yaml}.to_json, "CONTENT_TYPE" => "application/json")
         expect(last_response.status).to eq(422)
       end
     end
 
     context "without having YAML" do
       it "returns 400" do
-        post("/api/rules/", { foo: "bar" }.to_json, "CONTENT_TYPE" => "application/json")
+        post("/api/rules/", {foo: "bar"}.to_json, "CONTENT_TYPE" => "application/json")
         expect(last_response.status).to eq(400)
       end
     end