diff --git a/.github/workflows/validation.yml b/.github/workflows/validation.yml
index de78330c..cc6ac600 100644
--- a/.github/workflows/validation.yml
+++ b/.github/workflows/validation.yml
@@ -13,7 +13,7 @@ on:
   workflow_dispatch:
 
 concurrency:
-  group: ${{ github.ref }}-validation
+  group: pr-${{ github.event.pull_request.number }}
   cancel-in-progress: true
 
 jobs: