diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
new file mode 100644
index 00000000..1f0a7c56
--- /dev/null
+++ b/.github/CODEOWNERS
@@ -0,0 +1,3 @@
+# These owners will be the default owners for everything in
+# the repo. Unless a later match takes precedenc
+* @tkxkd0159 @zemyblue @0Tech @jaeseung-bae
diff --git a/.mergify.yml b/.mergify.yml
index c41d6f4f..65a62068 100644
--- a/.mergify.yml
+++ b/.mergify.yml
@@ -6,7 +6,7 @@ queue_rules:
 pull_request_rules:
   - name: Automatic merge to main with label automerge and branch protection passing
     conditions:
-      - "#approved-reviews-by>=1"
+      - "#approved-reviews-by>1"
       - base=main
       - label=automerge
     actions:
@@ -16,3 +16,11 @@ pull_request_rules:
         commit_message_template: |
           {{ title }} (#{{ number }})
           {{ body }}
+  - name: backport patches to v2.0.x branch
+    conditions:
+      - base=main
+      - label=backport/v2.0.x
+    actions:
+      backport:
+        branches:
+          - release/v2.0.x
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4612385d..c683a118 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -48,6 +48,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 ### Build, CI
 * (ci) [\#290](https://github.com/Finschia/finschia/pull/290) remove autopr ci
 * (ci) [\#291](https://github.com/Finschia/finschia/pull/291) fix goreleaser ci error and replace release-build
+* (repo) [\#295](https://github.com/Finschia/finschia/pull/295) setup CODEOWNERS and backport action
 
 ### Docs