diff --git a/Gemfile b/Gemfile
index 96b647f..eadacb6 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,5 +2,3 @@ source 'https://rubygems.org'
 
 # Specify your gem's dependencies in rails-perftest.gemspec
 gemspec
-
-gem 'rails', github: 'rails/rails', branch: 'master'
diff --git a/rails-perftest.gemspec b/rails-perftest.gemspec
index ba3d2c9..a376c77 100644
--- a/rails-perftest.gemspec
+++ b/rails-perftest.gemspec
@@ -17,10 +17,10 @@ Gem::Specification.new do |gem|
 
   gem.add_development_dependency 'ruby-prof', '>= 0.12.1'
   gem.add_development_dependency 'minitest', '>= 3'
-  gem.add_development_dependency 'railties', '~> 4.0.0.beta'
-  gem.add_development_dependency 'activerecord', '~> 4.0.0.beta'
-  gem.add_development_dependency 'activemodel', '~> 4.0.0.beta'
-  gem.add_development_dependency 'actionmailer', '~> 4.0.0.beta'
-  gem.add_development_dependency 'actionpack', '~> 4.0.0.beta'
+  gem.add_development_dependency 'railties', '~> 4.0'
+  gem.add_development_dependency 'activerecord', '~> 4.0'
+  gem.add_development_dependency 'activemodel', '~> 4.0'
+  gem.add_development_dependency 'actionmailer', '~> 4.0'
+  gem.add_development_dependency 'actionpack', '~> 4.0'
   gem.add_development_dependency 'sqlite3', '~> 1.3'
 end
diff --git a/rails-perftest.gemspec.erb b/rails-perftest.gemspec.erb
index ba55b21..8ec3131 100644
--- a/rails-perftest.gemspec.erb
+++ b/rails-perftest.gemspec.erb
@@ -17,10 +17,10 @@ Gem::Specification.new do |gem|
 
   gem.add_development_dependency 'ruby-prof', '>= 0.12.1'
   gem.add_development_dependency 'minitest', '>= 3'
-  gem.add_development_dependency 'railties', '~> 4.0.0.beta'
-  gem.add_development_dependency 'activerecord', '~> 4.0.0.beta'
-  gem.add_development_dependency 'activemodel', '~> 4.0.0.beta'
-  gem.add_development_dependency 'actionmailer', '~> 4.0.0.beta'
-  gem.add_development_dependency 'actionpack', '~> 4.0.0.beta'
+  gem.add_development_dependency 'railties', '~> 4.0'
+  gem.add_development_dependency 'activerecord', '~> 4.0'
+  gem.add_development_dependency 'activemodel', '~> 4.0'
+  gem.add_development_dependency 'actionmailer', '~> 4.0'
+  gem.add_development_dependency 'actionpack', '~> 4.0'
   gem.add_development_dependency 'sqlite3', '~> 1.3'
 end