.travis.yml in zold-stress-0.1.0 vs .travis.yml in zold-stress-0.2.0

@@ -1,8 +1,7 @@
 language: ruby
 rvm:
-  - 2.3.1
-  - 2.3.3
+  - 2.5.1
 cache: bundler
 branches:
   only:
     - master
 install: