.travis.yml in react_on_rails-11.0.7 vs .travis.yml in react_on_rails-11.0.8

@@ -35,12 +35,12 @@
   - sudo dpkg -i google-chrome*.deb
   - "/sbin/start-stop-daemon --start --quiet --pidfile /tmp/custom_xvfb_99.pid --make-pidfile --background --exec /usr/bin/Xvfb -- :99 -ac -screen scn 1600x1200x16"
 
 install:
   - travis_retry gem install bundler
-  - travis_retry nvm install 9.11.1
+  - travis_retry nvm install 8.11.3
   - node -v
-  - travis_retry npm i -g yarn@0.27.5
+  - travis_retry npm i -g yarn
   - travis_retry yarn global add babel-cli
   - travis_retry bundle install
   - travis_retry yarn
   - travis_retry yarn run build
   - bundle exec rake prepare_for_ci