diff --git a/Gemfile b/Gemfile
index 6d0bc90..ce468fb 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,9 +1,10 @@
 source 'https://rubygems.org'
 
 group :development do
-  gem 'shoulda'
   gem 'jeweler', '>= 1.5.1'
   gem 'rcov'
+  gem 'rdoc', '>= 2.4.2'
+  gem 'shoulda'
 end
 
 group :test do
diff --git a/Rakefile b/Rakefile
index 1302caa..682dd49 100644
--- a/Rakefile
+++ b/Rakefile
@@ -40,7 +40,7 @@ end
 
 task :default => :test
 
-require 'rake/rdoctask'
+require 'rdoc/task'
 Rake::RDocTask.new do |rdoc|
   version = File.exist?('VERSION') ? File.read('VERSION') : ""