diff --git a/Gemfile b/Gemfile
index 714437d917..32dc75588d 100644
--- a/Gemfile
+++ b/Gemfile
@@ -10,7 +10,7 @@ gem "rails", :path => File.dirname(__FILE__)
 
 gem "rake",  ">= 0.8.7"
 gem "mocha", ">= 0.9.8"
-gem "rdoc",  ">= 2.5.9"
+gem "rdoc",  ">= 2.5.10"
 gem "horo",  ">= 1.0.1"
 
 # AS
diff --git a/Rakefile b/Rakefile
index ceb0e832b3..91c808f4d3 100644
--- a/Rakefile
+++ b/Rakefile
@@ -1,4 +1,4 @@
-gem 'rdoc', '>= 2.5.9'
+gem 'rdoc', '>= 2.5.10'
 require 'rdoc'
 
 require 'rake'
diff --git a/actionmailer/Rakefile b/actionmailer/Rakefile
index a47426bd07..4611d95c22 100644
--- a/actionmailer/Rakefile
+++ b/actionmailer/Rakefile
@@ -1,4 +1,4 @@
-gem 'rdoc', '>= 2.5.9'
+gem 'rdoc', '>= 2.5.10'
 require 'rdoc'
 require 'rake'
 require 'rake/testtask'
diff --git a/actionpack/Rakefile b/actionpack/Rakefile
index 4af8ea167a..3eb4408f9f 100644
--- a/actionpack/Rakefile
+++ b/actionpack/Rakefile
@@ -1,4 +1,4 @@
-gem 'rdoc', '>= 2.5.9'
+gem 'rdoc', '>= 2.5.10'
 require 'rdoc'
 require 'rake'
 require 'rake/testtask'
diff --git a/activemodel/Rakefile b/activemodel/Rakefile
index 3fffc0d021..5142ee6715 100644
--- a/activemodel/Rakefile
+++ b/activemodel/Rakefile
@@ -1,6 +1,6 @@
 dir = File.dirname(__FILE__)
 
-gem 'rdoc', '>= 2.5.9'
+gem 'rdoc', '>= 2.5.10'
 require 'rdoc'
 
 require 'rake/testtask'
diff --git a/activerecord/Rakefile b/activerecord/Rakefile
index c1e90cc099..f868b802e5 100644
--- a/activerecord/Rakefile
+++ b/activerecord/Rakefile
@@ -1,4 +1,4 @@
-gem 'rdoc', '>= 2.5.9'
+gem 'rdoc', '>= 2.5.10'
 require 'rdoc'
 require 'rake'
 require 'rake/testtask'
diff --git a/activeresource/Rakefile b/activeresource/Rakefile
index 2145f1017c..6b522d817d 100644
--- a/activeresource/Rakefile
+++ b/activeresource/Rakefile
@@ -1,4 +1,4 @@
-gem 'rdoc', '>= 2.5.9'
+gem 'rdoc', '>= 2.5.10'
 require 'rdoc'
 require 'rake'
 require 'rake/testtask'
diff --git a/activesupport/Rakefile b/activesupport/Rakefile
index 8e2683ef89..562cabb2af 100644
--- a/activesupport/Rakefile
+++ b/activesupport/Rakefile
@@ -1,4 +1,4 @@
-gem 'rdoc', '>= 2.5.9'
+gem 'rdoc', '>= 2.5.10'
 require 'rdoc'
 require 'rake/testtask'
 require 'rdoc/task'
diff --git a/railties/Rakefile b/railties/Rakefile
index 8e78d2ff4a..2c5f676249 100644
--- a/railties/Rakefile
+++ b/railties/Rakefile
@@ -1,4 +1,4 @@
-gem 'rdoc', '>= 2.5.9'
+gem 'rdoc', '>= 2.5.10'
 require 'rdoc'
 require 'rake'
 require 'rake/testtask'