diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 5d86476..ef42c92 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -27,7 +27,7 @@ jobs:
         working-directory: "./doc/doxy"
     
     - name: Deploy
-      uses: peaceiris/actions-gh-pages@v3
+      uses: peaceiris/actions-gh-pages@v4
       with:
         github_token: ${{ secrets.GITHUB_TOKEN }}
         publish_dir: ./doc/doxy/html