.travis.yml in trustpilot-business-links-1.0.3 vs .travis.yml in trustpilot-business-links-1.1.0

@@ -1,9 +1,11 @@
 language: ruby
 
 rvm:
-  - 2.3.3
-  - 2.4.0
+  - 2.1.10
+  - 2.3.7
+  - 2.4.4
+  - 2.5.1
 
 before_install:
   - gem update --system # https://github.com/bundler/bundler/issues/5357
   - make install