diff --git a/.github/workflows/doxygen.yml b/.github/workflows/doxygen.yml
index f69802030..b1c237dde 100644
--- a/.github/workflows/doxygen.yml
+++ b/.github/workflows/doxygen.yml
@@ -17,7 +17,7 @@ jobs:
       - name: Build doxygen documentation
         run: nix shell nixpkgs#doxygen nixpkgs#graphviz --command doxygen
       - name: Deploy
-        uses: peaceiris/actions-gh-pages@v3
+        uses: peaceiris/actions-gh-pages@v4
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: ./html