.travis.yml in ts_routes-1.0.1 vs .travis.yml in ts_routes-1.0.2

@@ -1,19 +1,27 @@
 dist: trusty
 sudo: false
 language: ruby
 rvm:
-  - "2.3"
-  - "2.4"
+  - 2.4
+  - 2.5
 
-before_install:
+matrix:
+  allow_failures:
+    - rvm: 2.5
+
+install:
   - nvm install 8
-  - npm install
+  - npm install -g npm && npm --version
+  - npm ci
+  - gem update --system && gem --version
+  - bundle install --jobs=3 --retry=3 --path=${BUNDLE_PATH:-vendor/bundle}
 
 cache:
   bundler: true
   directories:
-    - node_modules
+    - "$HOME/.npm"
+    - vendor/bundle
 
 script:
   - bundle exec rake
   - bundle exec rubocop