diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 25f9af4..e423935 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -13,7 +13,9 @@ jobs:
 
     runs-on: ${{ matrix.platform }}
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
+      with:
+        ref: ${{ github.event.pull_request.head.sha }}
     - name: setup node
       uses: actions/setup-node@v1
       with: