diff --git a/.github/workflows/gh-pages.yml b/.github/workflows/gh-pages.yml
index 300ec06..d8a8c10 100644
--- a/.github/workflows/gh-pages.yml
+++ b/.github/workflows/gh-pages.yml
@@ -17,7 +17,7 @@ jobs:
             - uses: actions/checkout@v3
             - uses: actions/setup-node@v3
               with:
-                  node-version: 18
+                  node-version: 20
                   cache: npm
 
             - name: Install dependencies
@@ -46,7 +46,7 @@ jobs:
             # Popular action to deploy to GitHub Pages:
             # Docs: https://github.com/peaceiris/actions-gh-pages#%EF%B8%8F-docusaurus
             - name: Deploy to GitHub Pages
-              uses: peaceiris/actions-gh-pages@v3
+              uses: peaceiris/actions-gh-pages@v4
               with:
                   github_token: ${{ secrets.GITHUB_TOKEN }}
                   # Build output to publish to the `gh-pages` branch:
diff --git a/package.json b/package.json
index 01ad7ed..6044e16 100644
--- a/package.json
+++ b/package.json
@@ -90,6 +90,6 @@
         ]
     },
     "engines": {
-        "node": ">=18.0"
+        "node": ">=20"
     }
 }