diff --git a/.github/workflows/doc.yml b/.github/workflows/doc.yml
index db4aaba..b2bbab0 100644
--- a/.github/workflows/doc.yml
+++ b/.github/workflows/doc.yml
@@ -11,6 +11,8 @@ jobs:
 
     steps:
     - uses: actions/checkout@v4
+      with:
+        ref: gh-pages
     - name: Configure Git Credentials
       run: |
         git config user.name github-actions[bot]