diff --git a/Dockerfile b/Dockerfile
index 3d936245..ccd975ca 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,7 +4,7 @@ RUN mkdir -p /opt/stackedit/stackedit_v4
WORKDIR /opt/stackedit/stackedit_v4
ENV SERVE_V4 true
-ENV V4_VERSION 4.3.21
+ENV V4_VERSION 4.3.22
RUN npm pack stackedit@$V4_VERSION \
&& tar xzf stackedit-*.tgz --strip 1 \
&& yarn \
diff --git a/server/index.js b/server/index.js
index fb159f17..55889047 100644
--- a/server/index.js
+++ b/server/index.js
@@ -41,6 +41,8 @@ module.exports = (app, serveV4) => {
// Serve landing.html
app.get('/', (req, res) => res.sendFile(resolvePath('static/landing/index.html')));
+ // Serve sitemap.xml
+ app.get('/sitemap.xml', (req, res) => res.sendFile(resolvePath('static/sitemap.xml')));
// Serve callback.html
app.get('/oauth2/callback', (req, res) => res.sendFile(resolvePath('static/oauth2/callback.html')));
// Google Drive action receiver
diff --git a/static/landing/index.html b/static/landing/index.html
index 23e713b7..d22aad8e 100644
--- a/static/landing/index.html
+++ b/static/landing/index.html
@@ -12,6 +12,7 @@
+