diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3edeb10..3336474 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -9,6 +9,10 @@ on:
 permissions:
   contents: read
 
+concurrency:
+  group: ci-${{ github.event_name }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   go-test:
     runs-on: ubuntu-latest