diff --git a/.gitea/workflows/build-serve.yml b/.gitea/workflows/build-serve.yml
index 2dcaf3c..d369d99 100644
--- a/.gitea/workflows/build-serve.yml
+++ b/.gitea/workflows/build-serve.yml
@@ -1,29 +1,30 @@
-name: Build mdBook
+name: github pages
 
 on:
   push:
     branches:
       - main
+  pull_request:
 
 jobs:
-  build:
-    runs-on: ubuntu-latest
-
+  deploy:
+    runs-on: ubuntu-20.04
+    concurrency:
+      group: ${{ github.workflow }}-${{ github.ref }}
     steps:
-      - name: Checkout code
-        uses: actions/checkout@v3
+      - uses: actions/checkout@v2
 
-      - name: Install mdBook
-        run: |
-          curl -sSL https://github.com/rust-lang/mdBook/releases/download/v0.4.40/mdbook-v0.4.40-x86_64-unknown-linux-gnu.tar.gz | tar -xvz -C /usr/local/bin
+      - name: Setup mdBook
+        uses: peaceiris/actions-mdbook@v2
+        with:
+          mdbook-version: '0.4.10'
+          # mdbook-version: 'latest'
 
-      - name: Build mdBook
-        run: mdbook build
+      - run: mdbook build
 
       - name: Deploy
-        run: |
-          rsync -avz --delete ./book/ books@signorovitch.org:apush-guide
-        env:
-          SSH_PRIVATE_KEY: ${{ secrets.SSH_PRIVATE_KEY }}
-
-
+        uses: peaceiris/actions-gh-pages@v3
+        if: ${{ github.ref == 'refs/heads/main' }}
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: ./book