diff --git a/src/apptask.js b/src/apptask.js
index 348b8689a..8bb5d4731 100644
--- a/src/apptask.js
+++ b/src/apptask.js
@@ -803,6 +803,7 @@ function update(app, args, progressCallback, callback) {
     // FIXME: this does not handle option changes (like multipleDatabases)
     const unusedAddons = _.omit(app.manifest.addons, Object.keys(updateConfig.manifest.addons));
     const httpPathsChanged = app.manifest.httpPaths !== updateConfig.manifest.httpPaths;
+    const httpPortChanged = app.manifest.httpPort !== updateConfig.manifest.httpPort;
     const proxyAuthChanged = !_.isEqual(safe.query(app.manifest, 'addons.proxyAuth'), safe.query(updateConfig.manifest, 'addons.proxyAuth'));
 
     async.series([
@@ -880,7 +881,7 @@ function update(app, args, progressCallback, callback) {
 
         progressCallback.bind(null, { percent: 90, message: 'Configuring reverse proxy' }),
         function (next) {
-            if (!httpPathsChanged && !proxyAuthChanged) return next();
+            if (!httpPathsChanged && !proxyAuthChanged && !httpPortChanged) return next();
 
             configureReverseProxy(app, next);
         },