diff --git a/.github/workflows/main_matrix.yml b/.github/workflows/main_matrix.yml
index da619fe9f..54e721083 100644
--- a/.github/workflows/main_matrix.yml
+++ b/.github/workflows/main_matrix.yml
@@ -1,4 +1,7 @@
 name: CI
+concurrency:
+  group: ${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
 #concurrency:
 #  group: ${{ github.ref }}
 #  cancel-in-progress: ${{ github.ref != 'refs/heads/master' }}