diff --git a/.github/workflows/website.yml b/.github/workflows/website.yml
new file mode 100644
index 0000000..5272e5b
--- /dev/null
+++ b/.github/workflows/website.yml
@@ -0,0 +1,21 @@
+name: Website
+
+on:
+  push:
+    branches:
+    - v0.9.x
+
+jobs:
+  build-deploy:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@master
+    - run: cargo install mdbook mdbook-linkcheck
+    - run: cd website && mdbook build
+    - run: echo "lettre.at" > website/_book/html/CNAME
+    - name: Deploy
+      uses: peaceiris/actions-gh-pages@v2.5.0
+      env:
+        ACTIONS_DEPLOY_KEY: ${{ secrets.ACTIONS_DEPLOY_KEY }}
+        PUBLISH_BRANCH: gh-pages
+        PUBLISH_DIR: ./website/_book