diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index a75f98fb..4793ea8a 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -3,7 +3,7 @@ name: build
 on: [push, pull_request]
 
 concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
+  group: ci-${{ github.workflow }}-${{ github.head_ref || github.ref_name }}
   cancel-in-progress: true
 
 jobs: