.travis.yml in learnosity-sdk-0.2.0 vs .travis.yml in learnosity-sdk-0.2.1

@@ -1,5 +1,8 @@
 sudo: false
 language: ruby
 rvm:
-  - 2.0.0
-before_install: gem install bundler -v 1.14.6
+  - 2.3
+  - 2.4
+  - 2.5
+  - 2.6
+before_install: gem install bundler -v 2.0.2