.travis.yml in rekkyo-0.2.0 vs .travis.yml in rekkyo-1.0.0

@@ -2,11 +2,11 @@
 sudo: false
 language: ruby
 cache: bundler
 rvm:
   - 2.4.5
-  - 2.5.3
+  - 2.5.5
+  - 2.6.2
 gemfile:
   - Gemfile
   - gemfiles/activesupport_5.1.gemfile
   - gemfiles/activesupport_5.2.gemfile
-before_install: gem install bundler -v 1.17.1