diff --git a/.github/workflows/auto_request_review.yml b/.github/workflows/auto_request_review.yml
index 6d8edd5c22..f837905fe6 100644
--- a/.github/workflows/auto_request_review.yml
+++ b/.github/workflows/auto_request_review.yml
@@ -10,6 +10,7 @@ jobs:
   auto-request-review:
     name: Auto Request Review
     runs-on: ubuntu-latest
+    if: ${{ github.repository == 'ruby/ruby' }}
     steps:
       - name: Request review based on files changes and/or groups the author belongs to
         uses: necojackarc/auto-request-review@b5e81876454003a4ccb9b89cb205c67d77d7035b # v0.8.0