diff --git a/.github/workflows/ci-cd.yml b/.github/workflows/ci-cd.yml
index fc43af23..0d9fe15e 100644
--- a/.github/workflows/ci-cd.yml
+++ b/.github/workflows/ci-cd.yml
@@ -435,7 +435,7 @@ jobs:
         make html
     
     - name: Deploy documentation
-      uses: peaceiris/actions-gh-pages@v3
+      uses: peaceiris/actions-gh-pages@v4
       with:
         github_token: ${{ secrets.GITHUB_TOKEN }}
         publish_dir: ./docs/_build/html