Gemfile in roo-2.5.1 vs Gemfile in roo-2.6.0

@@ -4,10 +4,10 @@
 
 group :test do
   # additional testing libs
   gem 'webmock'
   gem 'shoulda'
-  gem 'activesupport', '< 5.0.0'
+  gem 'activesupport', '< 5.1'
   gem 'rspec', '>= 3.0.0'
   gem 'vcr'
   gem 'simplecov', '>= 0.9.0', require: false
   gem 'coveralls', require: false
 end