diff --git a/app.json b/app.json
index e33d9d171..eca807df3 100644
--- a/app.json
+++ b/app.json
@@ -39,6 +39,9 @@
   },
   "image": "heroku/ruby",
   "buildpacks": [
+    {
+      "url": "https://github.com/heroku/heroku-buildpack-nodejs"
+    },
     {
       "url": "https://github.com/heroku/heroku-buildpack-ruby"
     }