Specific version for node

Author: emrojo

.travis.yml

@@ -3,7 +3,6 @@ dist: xenial
 sudo: required
 addons:
   chrome: stable
-  node_js: v11.0.0
 cache:
   bundler: true
   yarn: true
@@ -14,6 +13,8 @@ before_install:
 - google-chrome-stable --headless --disable-gpu --remote-debugging-port=9222 http://localhost &
 install:
 - bundle install --deployment
+- nvm install
+- node --version
 - yarn install
 before_script:
 - export SECRET_KEY_BASE=`bundle exec rake secret`