diff --git a/.github/workflows/publish-docs.yml b/.github/workflows/publish-docs.yml
index 7e75c88a3..dfa4c54e7 100644
--- a/.github/workflows/publish-docs.yml
+++ b/.github/workflows/publish-docs.yml
@@ -24,7 +24,7 @@ jobs:
       - run: mdbook build taskchampion/docs
 
       - name: Deploy
-        uses: peaceiris/actions-gh-pages@v3
+        uses: peaceiris/actions-gh-pages@v4
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: ./taskchampion/docs/book