diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f6b5d6e..1528f27 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,7 +17,7 @@ on:
 
 # Cancel existing jobs on new pushes to the same branch
 concurrency:
-  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true
 
 env: