diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3bde822..48bb837 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,6 +6,10 @@ name: ci
   push:
     branches: [main]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.run_id }}
+  cancel-in-progress: ${{ github.event_name == 'pull_request' }}
+
 jobs:
   lint-unit:
     uses: sous-chefs/.github/.github/workflows/lint-unit.yml@9.0.1