diff --git a/Gemfile b/Gemfile
index e6a9ef5..25f4e5c 100644
--- a/Gemfile
+++ b/Gemfile
@@ -4,7 +4,6 @@ gemspec
 
 group :development do
   gem 'rake'
-  gem 'rack', '< 2.0.0', :platforms => [:ruby_19, :ruby_20, :ruby_21, :jruby_19]
   gem 'nokogiri'
   gem 'jeweler', '< 2.1.3'
   gem 'pry'