diff --git a/.github/workflows/agent-pr-review.yml b/.github/workflows/agent-pr-review.yml
index ea69e2b2..b7b58244 100644
--- a/.github/workflows/agent-pr-review.yml
+++ b/.github/workflows/agent-pr-review.yml
@@ -8,6 +8,10 @@ permissions:
   contents: write
   pull-requests: write
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number }}
+  cancel-in-progress: true
+
 jobs:
   agent-review:
     runs-on: ubuntu-latest