diff --git a/.github/workflows/pr.yml b/.github/workflows/pr.yml
index fac7597ea..2066dc29e 100644
--- a/.github/workflows/pr.yml
+++ b/.github/workflows/pr.yml
@@ -3,6 +3,10 @@ name: pr-check
 on:
   pull_request:
 
+concurrency:
+  group: pr-${{github.workflow}}-${{github.event.pull_request.number}}
+  cancel-in-progress: true
+
 jobs:
   fmt-check:
     runs-on: ubuntu-latest