.travis.yml in beespew-2.0.0 vs .travis.yml in beespew-2.1.0

@@ -1,10 +1,11 @@
 language: ruby
 rvm:
-- 2.4.0
+- 2.5.1
 gemfile:
 - gemfiles/rails_5.0.gemfile
 - gemfiles/rails_5.1.gemfile
+- gemfiles/rails_5.2.gemfile
 cache: bundler
 script:
 - bundle exec rspec spec
 notifications:
   webhooks: