diff --git a/.github/workflows/copyright_notice.yml b/.github/workflows/copyright_notice.yml
index fed4cc4..321c44e 100644
--- a/.github/workflows/copyright_notice.yml
+++ b/.github/workflows/copyright_notice.yml
@@ -3,6 +3,9 @@ on:
   pull_request:
 permissions:
   contents: write
+concurrency:
+  group: ${{ github.ref }}
+  cancel-in-progress: true
 jobs:
   copyright_notice:
     runs-on: ubuntu-latest