diff --git a/.github/workflows/test-cm.yml b/.github/workflows/test-cm.yml
index 68370e1ea..14bf8b0d9 100644
--- a/.github/workflows/test-cm.yml
+++ b/.github/workflows/test-cm.yml
@@ -20,10 +20,10 @@ jobs:
         on: [ubuntu-latest, windows-latest]
     runs-on: "${{ matrix.on }}"
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
-        ref: ${{ github.event.pull_request.head.sha }}
         repository: ${{ github.event.pull_request.head.repo }}
+        ref: ${{ github.event.pull_request.head.sha }}
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v3
       with: