diff --git a/app.json b/app.json
index c4a6e213..841b3bef 100644
--- a/app.json
+++ b/app.json
@@ -10,5 +10,12 @@
     "file manager",
     "folder",
     "orthodox"
-  ]
+  ],
+  "env": {
+      "NPM_CONFIG_PRODUCTION": {
+          "description": "Keep false to install devDependencies and build frontend",
+          "value": "false",
+          "required": false
+      }
+  }
 }
diff --git a/package.json b/package.json
index d212157d..6297fb39 100644
--- a/package.json
+++ b/package.json
@@ -95,7 +95,8 @@
     "mkdir:json": "mkdirp legacy/json",
     "legacy:server": "bin/legacy.js",
     "legacy:help": "cp json/help.json legacy/json/",
-    "rm:legacy": "rimraf legacy server_"
+    "rm:legacy": "rimraf legacy server_",
+    "heroku-postbuild": "redrun 6to5:client -- --progress"
   },
   "directories": {
     "man": "man"