diff --git a/.github/workflows/doxygen.yml b/.github/workflows/doxygen.yml
index acb07990b..3aad25831 100644
--- a/.github/workflows/doxygen.yml
+++ b/.github/workflows/doxygen.yml
@@ -32,7 +32,7 @@ jobs:
           doxyfile-path:  docs/Doxyfile
 
       - name: Deploy
-        uses: peaceiris/actions-gh-pages@v3
+        uses: peaceiris/actions-gh-pages@v4
         # If you're changing the branch from main,
         # also change the `main` in `refs/heads/main`
         # below accordingly.