diff --git a/Gemfile b/Gemfile
index 9f1f3142..0b824ce8 100644
--- a/Gemfile
+++ b/Gemfile
@@ -135,7 +135,7 @@ gem 'codemirror-rails'
 # bundle exec rake doc:rails generates the Rails API under doc/api.
 group :doc do
   gem 'sdoc', '~> 0.4.0'
-  gem 'yard', '~> 0.9.11'
+  gem 'yard', '~> 0.9.20'
 end
 
 group :development do
diff --git a/Gemfile.lock b/Gemfile.lock
index 2954db5b..de8182df 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -420,7 +420,7 @@ GEM
       chronic (>= 0.6.3)
     xpath (2.1.0)
       nokogiri (~> 1.3)
-    yard (0.9.18)
+    yard (0.9.20)
 
 PLATFORMS
   ruby
@@ -490,7 +490,7 @@ DEPENDENCIES
   unicorn-rails
   web-console (~> 2.1)
   whenever
-  yard (~> 0.9.11)
+  yard (~> 0.9.20)
 
 BUNDLED WITH
    1.11.2