diff --git a/Gemfile b/Gemfile
index 19bfe97..1b8ffb5 100644
--- a/Gemfile
+++ b/Gemfile
@@ -7,7 +7,7 @@ gem 'rspec', '>= 2.8.0'
 
 group :development, :test do
   gem 'yard', '~> 0.8.7'
-  gem 'rdoc', '~> 3.12'
+  gem 'rdoc', '~> 6.3'
   gem 'bundler', '~> 1.0'
   gem 'jeweler', '~> 1.8.6'
   gem 'reek', '~> 1.2.8'
diff --git a/Gemfile.lock b/Gemfile.lock
index 2604f99..2a09c73 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -51,8 +51,7 @@ GEM
       rack (~> 1.2)
     rack (1.5.2)
     rake (10.1.0)
-    rdoc (3.12.2)
-      json (~> 1.4)
+    rdoc (6.3.1)
     reek (1.2.13)
       ripper_ruby_parser (~> 0.0.7)
       ruby2ruby (~> 1.2.5)
@@ -89,7 +88,7 @@ DEPENDENCIES
   cucumber (>= 1.1.4)
   jeweler (~> 1.8.6)
   json (>= 1.6.5)
-  rdoc (~> 3.12)
+  rdoc (~> 6.3)
   reek (~> 1.2.8)
   roodi (~> 2.1.0)
   rspec (>= 2.8.0)
diff --git a/cukunity.gemspec b/cukunity.gemspec
index 63092a6..8a7dedd 100644
--- a/cukunity.gemspec
+++ b/cukunity.gemspec
@@ -261,7 +261,7 @@ Gem::Specification.new do |s|
       s.add_runtime_dependency(%q<cucumber>, [">= 1.1.4"])
       s.add_runtime_dependency(%q<rspec>, [">= 2.8.0"])
       s.add_development_dependency(%q<yard>, ["~> 0.8.7"])
-      s.add_development_dependency(%q<rdoc>, ["~> 3.12"])
+      s.add_development_dependency(%q<rdoc>, "~> 6.3")
       s.add_development_dependency(%q<bundler>, ["~> 1.0"])
       s.add_development_dependency(%q<jeweler>, ["~> 1.8.6"])
       s.add_development_dependency(%q<reek>, ["~> 1.2.8"])
@@ -274,7 +274,7 @@ Gem::Specification.new do |s|
       s.add_dependency(%q<cucumber>, [">= 1.1.4"])
       s.add_dependency(%q<rspec>, [">= 2.8.0"])
       s.add_dependency(%q<yard>, ["~> 0.8.7"])
-      s.add_dependency(%q<rdoc>, ["~> 3.12"])
+      s.add_dependency(%q<rdoc>, "~> 6.3")
       s.add_dependency(%q<bundler>, ["~> 1.0"])
       s.add_dependency(%q<jeweler>, ["~> 1.8.6"])
       s.add_dependency(%q<reek>, ["~> 1.2.8"])
@@ -288,7 +288,7 @@ Gem::Specification.new do |s|
     s.add_dependency(%q<cucumber>, [">= 1.1.4"])
     s.add_dependency(%q<rspec>, [">= 2.8.0"])
     s.add_dependency(%q<yard>, ["~> 0.8.7"])
-    s.add_dependency(%q<rdoc>, ["~> 3.12"])
+    s.add_dependency(%q<rdoc>, "~> 6.3")
     s.add_dependency(%q<bundler>, ["~> 1.0"])
     s.add_dependency(%q<jeweler>, ["~> 1.8.6"])
     s.add_dependency(%q<reek>, ["~> 1.2.8"])