.travis.yml in masina-0.1.7 vs .travis.yml in masina-0.1.8

@@ -1,7 +1,7 @@
 ---
 sudo: false
 language: ruby
 cache: bundler
 rvm:
-  - 2.5.3
-before_install: gem install bundler -v 1.17.1
+  - 2.6.4
+before_install: gem install bundler -v 2.0.2