.travis.yml in onyphe-0.2.2 vs .travis.yml in onyphe-0.2.3

@@ -1,7 +1,7 @@
 ---
 sudo: false
 language: ruby
 cache: bundler
 rvm:
-  - 2.5.2
-before_install: gem install bundler -v 1.17.1
+  - 2.6
+before_install: gem install bundler -v 2.0