Gemfile in backbone-nested-attributes-0.3.2 vs Gemfile in backbone-nested-attributes-0.4.0

@@ -1,9 +1,11 @@
 source 'https://rubygems.org'
 
 # Specify your gem's dependencies in backbone-nested-attributes.gemspec
 gemspec
 
+gem 'rails', "~> 3.2.x"
+
 gem 'sqlite3'
 
 gem 'jquery-rails'
 
 gem 'backbone-on-rails'