diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 80518cf..a1dc282 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -2,6 +2,10 @@ name: Lint and test
 
 on: push
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: ${{ github.ref != 'refs/heads/main' }}
+
 jobs:
   build-and-lint:
     runs-on: ubuntu-latest