diff --git a/.travis.yml b/.travis.yml
index b6873cf6..b6be0b06 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,8 +1,9 @@
 language: node_js
 node_js:
+- '6.0'
 - '5.11'
 - '4.4.3'
-- 0.12.12
+- 0.12.13
 deploy:
   provider: heroku
   api_key:
diff --git a/package.json b/package.json
index 2bc85bf6..490d071b 100644
--- a/package.json
+++ b/package.json
@@ -8,7 +8,7 @@
   "license": "MIT",
   "main": "./backend/server.js",
   "scripts": {
-    "install": "typings install && tsc -p backend && tsc -p test/backend && tsc -p common && webpack --config ./frontend/webpack.config.js ",
+    "install": "typings install && tsc -p backend && tsc -p test/backend && tsc -p common && webpack --config ./frontend/webpack.config.js -p",
     "pretest": "typings install",
     "test": "karma start ./karma.conf.js",
     "start": "node ./backend/server",