diff --git a/Gemfile b/Gemfile
index 88db302..5f7c226 100644
--- a/Gemfile
+++ b/Gemfile
@@ -9,7 +9,7 @@ gem "oauth", ">= 0.4.3"
 group :development do
   gem "bundler", "~> 1.0"
   gem "rake", "0.9.6"
-  gem "rdoc", "~> 3.12"
+  gem "rdoc", "~> 6.3"
   gem "jeweler", "~> 2.0.1"
 end
 
diff --git a/Gemfile.lock b/Gemfile.lock
index be4b26e..4bcec18 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -65,8 +65,7 @@ GEM
       rack (~> 1.2)
     rack (1.5.2)
     rake (0.9.6)
-    rdoc (3.12.2)
-      json (~> 1.4)
+    rdoc (6.3.1)
     rest-client (1.6.7)
       mime-types (>= 1.16)
     ruby-prof (0.13.0)
@@ -99,7 +98,7 @@ DEPENDENCIES
   multipart-post (>= 1.0.1)
   oauth (>= 0.4.3)
   rake (= 0.9.6)
-  rdoc (~> 3.12)
+  rdoc (~> 6.3)
   ruby-prof (>= 0.9.2)
   shoulda (>= 2.11.3)
   test-unit
diff --git a/vimeo.gemspec b/vimeo.gemspec
index 56fa5c9..a60c69c 100644
--- a/vimeo.gemspec
+++ b/vimeo.gemspec
@@ -213,7 +213,7 @@ Gem::Specification.new do |s|
       s.add_runtime_dependency(%q<oauth>, [">= 0.4.3"])
       s.add_development_dependency(%q<bundler>, ["~> 1.0"])
       s.add_development_dependency(%q<rake>, ["= 0.9.6"])
-      s.add_development_dependency(%q<rdoc>, ["~> 3.12"])
+      s.add_development_dependency(%q<rdoc>, "~> 6.3")
       s.add_development_dependency(%q<jeweler>, ["~> 2.0.1"])
       s.add_development_dependency(%q<shoulda>, [">= 2.11.3"])
       s.add_development_dependency(%q<fakeweb>, [">= 1.2.6"])
@@ -226,7 +226,7 @@ Gem::Specification.new do |s|
       s.add_dependency(%q<oauth>, [">= 0.4.3"])
       s.add_dependency(%q<bundler>, ["~> 1.0"])
       s.add_dependency(%q<rake>, ["= 0.9.6"])
-      s.add_dependency(%q<rdoc>, ["~> 3.12"])
+      s.add_dependency(%q<rdoc>, "~> 6.3")
       s.add_dependency(%q<jeweler>, ["~> 2.0.1"])
       s.add_dependency(%q<shoulda>, [">= 2.11.3"])
       s.add_dependency(%q<fakeweb>, [">= 1.2.6"])
@@ -240,7 +240,7 @@ Gem::Specification.new do |s|
     s.add_dependency(%q<oauth>, [">= 0.4.3"])
     s.add_dependency(%q<bundler>, ["~> 1.0"])
     s.add_dependency(%q<rake>, ["= 0.9.6"])
-    s.add_dependency(%q<rdoc>, ["~> 3.12"])
+    s.add_dependency(%q<rdoc>, "~> 6.3")
     s.add_dependency(%q<jeweler>, ["~> 2.0.1"])
     s.add_dependency(%q<shoulda>, [">= 2.11.3"])
     s.add_dependency(%q<fakeweb>, [">= 1.2.6"])