diff --git a/oa-basic/oa-basic.gemspec b/oa-basic/oa-basic.gemspec
index 256e3e9..3ef2463 100644
--- a/oa-basic/oa-basic.gemspec
+++ b/oa-basic/oa-basic.gemspec
@@ -4,9 +4,9 @@ require File.expand_path('../lib/omniauth/version', __FILE__)
 Gem::Specification.new do |gem|
   gem.add_dependency 'oa-core', OmniAuth::Version::STRING
   gem.add_dependency 'rest-client', '~> 1.6.0'
-  gem.add_development_dependency 'maruku', '~> 0.6'
   gem.add_development_dependency 'rack-test', '~> 0.5'
   gem.add_development_dependency 'rake', '~> 0.8'
+  gem.add_development_dependency 'rdiscount', '~> 1.6'
   gem.add_development_dependency 'rspec', '~> 2.5'
   gem.add_development_dependency 'simplecov', '~> 0.4'
   gem.add_development_dependency 'webmock', '~> 1.7'
diff --git a/oa-core/oa-core.gemspec b/oa-core/oa-core.gemspec
index b2955a7..f0a7c84 100644
--- a/oa-core/oa-core.gemspec
+++ b/oa-core/oa-core.gemspec
@@ -2,9 +2,9 @@
 require File.expand_path('../lib/omniauth/version', __FILE__)
 
 Gem::Specification.new do |gem|
-  gem.add_development_dependency 'maruku', '~> 0.6'
   gem.add_development_dependency 'rack-test', '~> 0.5'
   gem.add_development_dependency 'rake', '~> 0.8'
+  gem.add_development_dependency 'rdiscount', '~> 1.6'
   gem.add_development_dependency 'rspec', '~> 2.5'
   gem.add_development_dependency 'simplecov', '~> 0.4'
   gem.add_development_dependency 'yard', '~> 0.7'
diff --git a/oa-enterprise/oa-enterprise.gemspec b/oa-enterprise/oa-enterprise.gemspec
index 1972ae0..8d05dd3 100644
--- a/oa-enterprise/oa-enterprise.gemspec
+++ b/oa-enterprise/oa-enterprise.gemspec
@@ -8,9 +8,9 @@ Gem::Specification.new do |gem|
   gem.add_dependency 'oa-core', OmniAuth::Version::STRING
   gem.add_dependency 'pyu-ruby-sasl', '~> 0.0.3.1'
   gem.add_dependency 'rubyntlm', '~> 0.1.1'
-  gem.add_development_dependency 'maruku', '~> 0.6'
   gem.add_development_dependency 'rack-test', '~> 0.5'
   gem.add_development_dependency 'rake', '~> 0.8'
+  gem.add_development_dependency 'rdiscount', '~> 1.6'
   gem.add_development_dependency 'rspec', '~> 2.5'
   gem.add_development_dependency 'simplecov', '~> 0.4'
   gem.add_development_dependency 'webmock', '~> 1.7'
diff --git a/oa-more/oa-more.gemspec b/oa-more/oa-more.gemspec
index e145050..6053657 100644
--- a/oa-more/oa-more.gemspec
+++ b/oa-more/oa-more.gemspec
@@ -6,9 +6,9 @@ Gem::Specification.new do |gem|
   gem.add_dependency 'oa-core', OmniAuth::Version::STRING
   gem.add_dependency 'rest-client',  '~> 1.6.0'
   gem.add_development_dependency 'json_pure', '~> 1.5'
-  gem.add_development_dependency 'maruku', '~> 0.6'
   gem.add_development_dependency 'rack-test', '~> 0.5'
   gem.add_development_dependency 'rake', '~> 0.8'
+  gem.add_development_dependency 'rdiscount', '~> 1.6'
   gem.add_development_dependency 'rspec', '~> 2.5'
   gem.add_development_dependency 'simplecov', '~> 0.4'
   gem.add_development_dependency 'webmock', '~> 1.7'
diff --git a/oa-oauth/oa-oauth.gemspec b/oa-oauth/oa-oauth.gemspec
index 02d9255..ea1bc39 100644
--- a/oa-oauth/oa-oauth.gemspec
+++ b/oa-oauth/oa-oauth.gemspec
@@ -9,9 +9,9 @@ Gem::Specification.new do |gem|
   gem.add_dependency 'oauth', '~> 0.4.0'
   gem.add_dependency 'oauth2', '~> 0.5.0'
   gem.add_development_dependency 'evernote', '~> 1.0'
-  gem.add_development_dependency 'maruku', '~> 0.6'
   gem.add_development_dependency 'rack-test', '~> 0.5'
   gem.add_development_dependency 'rake', '~> 0.8'
+  gem.add_development_dependency 'rdiscount', '~> 1.6'
   gem.add_development_dependency 'rspec', '~> 2.5'
   gem.add_development_dependency 'simplecov', '~> 0.4'
   gem.add_development_dependency 'vcr', '~> 1.10'
diff --git a/oa-openid/oa-openid.gemspec b/oa-openid/oa-openid.gemspec
index 9c3d920..ff87433 100644
--- a/oa-openid/oa-openid.gemspec
+++ b/oa-openid/oa-openid.gemspec
@@ -5,9 +5,9 @@ Gem::Specification.new do |gem|
   gem.add_dependency 'oa-core', OmniAuth::Version::STRING
   gem.add_dependency 'rack-openid', '~> 1.3.1'
   gem.add_dependency 'ruby-openid-apps-discovery', '~> 1.2.0'
-  gem.add_development_dependency 'maruku', '~> 0.6'
   gem.add_development_dependency 'rack-test', '~> 0.5'
   gem.add_development_dependency 'rake', '~> 0.8'
+  gem.add_development_dependency 'rdiscount', '~> 1.6'
   gem.add_development_dependency 'rspec', '~> 2.5'
   gem.add_development_dependency 'simplecov', '~> 0.4'
   gem.add_development_dependency 'webmock', '~> 1.7'