diff --git a/package.json b/package.json
index 5019d456..cf540ff8 100644
--- a/package.json
+++ b/package.json
@@ -3,7 +3,7 @@
   "version": "1.0.1",
   "description": "\"Heroku client build\"",
   "scripts": {
-    "heroku-postbuild": "npm run build --prefix client"
+    "heroku-postbuild": "npm install --prefix client && npm run build --prefix client"
   },
   "engines": {
     "node": "8.x"