diff --git a/impressionist.gemspec b/impressionist.gemspec
index fa5017e..5cc1480 100644
--- a/impressionist.gemspec
+++ b/impressionist.gemspec
@@ -22,7 +22,7 @@ Gem::Specification.new do |s|
   s.add_dependency 'nokogiri', '~> 1.5'
   s.add_development_dependency 'capybara'
   s.add_development_dependency 'rake', '>= 0.9'
-  s.add_development_dependency 'railties', '~> 3.1'
+  s.add_development_dependency 'rails', '~> 3.1'
   s.add_development_dependency 'rdoc', '>= 2.4.2'
   s.add_development_dependency 'rspec-rails'
   s.add_development_dependency 'simplecov'