.travis.yml in ndr_support-5.3.1 vs .travis.yml in ndr_support-5.3.2

@@ -1,12 +1,12 @@
 language: ruby
 
 rvm:
-  - 2.2.5
-  - 2.3.1
+  - 2.3.6
+  - 2.4.3
+  - 2.5.0
 
 gemfile:
-  - gemfiles/Gemfile.rails41
   - gemfiles/Gemfile.rails42
   - gemfiles/Gemfile.rails50
   - gemfiles/Gemfile.rails51
 
 sudo: false