Gemfile in errational-0.7.1 vs Gemfile in errational-0.8.16

@@ -2,8 +2,8 @@
 
 # Specify your gem's dependencies in errational.gemspec
 gemspec
 
 gem "rake", "0.8.7"
-gem "rails", "3.0.7"
+gem "rails", "~> 3.0"
 gem "mocha", '0.9.12', :require => false