diff --git a/.github/workflows/promote.yml b/.github/workflows/promote.yml
index 92256fe8..bed9f527 100644
--- a/.github/workflows/promote.yml
+++ b/.github/workflows/promote.yml
@@ -12,6 +12,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
         with:
+          ssh-key: ${{ secrets.DEPLOY_KEY }}
           fetch-depth: 0
       - name: Fast-forward master branch
         run: |