diff --git a/.github/workflows/validate-data-converters.yml b/.github/workflows/validate-data-converters.yml
index 64411eb..77a55ba 100644
--- a/.github/workflows/validate-data-converters.yml
+++ b/.github/workflows/validate-data-converters.yml
@@ -15,6 +15,9 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
+        with:
+          repository: ${{ github.event.pull_request.head.repo.full_name }}
+          ref: ${{ github.event.pull_request.head.ref }}
       - name: Set up Python 3.10
         uses: actions/setup-python@v3
         with: