diff --git a/lib/mihari/concerns/retriable.rb b/lib/mihari/concerns/retriable.rb
index 510d1f3a..1609c102 100644
--- a/lib/mihari/concerns/retriable.rb
+++ b/lib/mihari/concerns/retriable.rb
@@ -21,7 +21,7 @@ module Retriable
 
         case error
         when StatusError
-          error.status_code != 404
+          ![401, 404].include?(error.status_code)
         else
           false
         end
diff --git a/spec/concerns/retriable_spec.rb b/spec/concerns/retriable_spec.rb
index 2e222c8a..b23eb04a 100644
--- a/spec/concerns/retriable_spec.rb
+++ b/spec/concerns/retriable_spec.rb
@@ -40,6 +40,13 @@ def http
       end
     end
 
+    context "with 401" do
+      it do
+        expect { subject.retriable_get("#{server.base_url}/status/401") }.to raise_error(Mihari::StatusError)
+        expect(subject.count).to eq(1)
+      end
+    end
+
     context "with non-404" do
       it do
         expect { subject.retriable_get("#{server.base_url}/status/500") }.to raise_error(Mihari::StatusError)