diff --git a/.github/workflows/merge.yml b/.github/workflows/merge.yml
index c8e7642..bc9535c 100644
--- a/.github/workflows/merge.yml
+++ b/.github/workflows/merge.yml
@@ -115,5 +115,5 @@ jobs:
               repo: context.repo.repo,
               body: commentBody
             });
-        if: ${{ github.event.pull_request }}
+        if: ${{ github.event.pull_request.opened || github.event.pull_request.synchronize || github.event.pull_request.reopened }}