diff --git a/.github/workflows/check-pull-request.yml b/.github/workflows/check-pull-request.yml
deleted file mode 100644
index 401dc0a..0000000
--- a/.github/workflows/check-pull-request.yml
+++ /dev/null
@@ -1,24 +0,0 @@
-# .github/workflows/check-pull-request.yml
-name: Check Pull Request
-
-on:
-  pull_request_target:
-
-jobs:
-  check-pull-request:
-    name: Check Pull Request
-    runs-on: ubuntu-latest
-    permissions:
-      pull-requests: write
-    steps:
-      - name: Check signed commits
-        id: review
-        uses: cloudforet-io/check-pr-action@v1
-        with:
-          token: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Notify Result
-        if: ${{ steps.review.outputs.signedoff == 'false' }}
-        run: |
-          echo "The review result is ${{ steps.review.outputs.signedoff }}"
-          exit 1