diff --git a/.github/workflows/validate-pr-title.yaml b/.github/workflows/validate-pr-title.yaml
index 483a928b4..104ba8c85 100644
--- a/.github/workflows/validate-pr-title.yaml
+++ b/.github/workflows/validate-pr-title.yaml
@@ -10,7 +10,7 @@ permissions:
   pull-requests: read
 
 concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number }}
   cancel-in-progress: true
 
 jobs: