diff --git a/.github/workflows/diff.yaml b/.github/workflows/diff.yaml
index c18eb1cf2..dd31484a6 100644
--- a/.github/workflows/diff.yaml
+++ b/.github/workflows/diff.yaml
@@ -1,4 +1,7 @@
 name: Diff
+concurrency:
+  group: ${{ github.head_ref }}
+  cancel-in-progress: true
 
 on:
   push: