diff --git a/.github/workflows/pr-check.yml b/.github/workflows/pr-check.yml
index 66b9b8ab..880d649e 100644
--- a/.github/workflows/pr-check.yml
+++ b/.github/workflows/pr-check.yml
@@ -32,7 +32,7 @@ jobs:
       uses: actions/checkout@v4
       with:
         repository: ${{ github.event.pull_request.head.repo.full_name }}
-        ref: ${{ github.event.pull_request.head.ref }}
+        ref: ${{ github.event.pull_request.head.sha }}
 
     - name: Installing node_modules
       run: npm install