.travis.yml in evil-client-0.3.3 vs .travis.yml in evil-client-1.0.0

@@ -5,9 +5,10 @@
 script:
   - bundle exec rspec
   - bundle exec rubocop
 rvm:
   - '2.3.0'
+  - '2.4.0'
   - ruby-head
   - jruby-9.1.0.0
   - jruby-head
 before_install: gem install bundler -v 1.12.5
 matrix: