.travis.yml in gazer-0.2.44 vs .travis.yml in gazer-0.2.46

@@ -1,5 +1,5 @@
 sudo: false
 language: ruby
 rvm:
-  - 2.3.3
-before_install: gem install bundler -v 1.16.1
+  - 2.5.8
+before_install: gem install bundler -v 1.17.3