diff --git a/.github/workflows/source-checks.yml b/.github/workflows/source-checks.yml
index 3584f35..d63fdf7 100644
--- a/.github/workflows/source-checks.yml
+++ b/.github/workflows/source-checks.yml
@@ -5,6 +5,10 @@ on:
     branches: [main]
   pull_request:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 permissions:
   contents: read