diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index 2f4b821..ad8fedc 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -11,6 +11,10 @@ on:
   schedule:
     - cron: "0 8 * * *"
 
+concurrency:
+  group: check-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   pre_commit:
     runs-on: ubuntu-latest