.travis.yml in nested_scaffold-1.0.0 vs .travis.yml in nested_scaffold-1.1.0

@@ -1,10 +1,16 @@
 language: ruby
 
 sudo: false
 
-rvm:
-  - 2.3.0
+before_install: gem i bundler -v '<2' --no-document
 
-gemfile:
-  - gemfiles/Gemfile-rails.4.2.x
-  - gemfiles/Gemfile-rails.5.0.0.beta3
+matrix:
+  include:
+    - rvm: 2.3.8
+      gemfile: gemfiles/Gemfile-rails.4.2.x
+    - rvm: 2.4.5
+      gemfile: gemfiles/Gemfile-rails.5.0.x
+    - rvm: 2.5.3
+      gemfile: gemfiles/Gemfile-rails.5.1.x
+    - rvm: 2.6.1
+      gemfile: gemfiles/Gemfile-rails.5.2.x