diff --git a/.github/workflows/test-build-pub-npm-dockerhub.yml b/.github/workflows/test-build-pub-npm-dockerhub.yml
index 02bcd28a..f23cb8bb 100644
--- a/.github/workflows/test-build-pub-npm-dockerhub.yml
+++ b/.github/workflows/test-build-pub-npm-dockerhub.yml
@@ -18,6 +18,13 @@ jobs:
   test-buid-publish:
     runs-on: ubuntu-latest
     steps:
+    
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        fetch-depth: 1
+        ref: ${{ github.event.pull_request.head.sha || github.ref }}
+    
     - name: reference test
       uses: ./.github/actions/backstop-reference-test.yml