diff --git a/gollum.gemspec b/gollum.gemspec
index 3fbfd535..be473c93 100644
--- a/gollum.gemspec
+++ b/gollum.gemspec
@@ -32,13 +32,13 @@ Gem::Specification.new do |s|
   s.add_dependency('mustache', ['>= 0.99.4', '< 1.0.0'])
   s.add_dependency('sanitize', '~> 2.0.3')
   s.add_dependency('nokogiri', '~> 1.5.5')
-  s.add_dependency('useragent', '~> 0.4.10')
+  s.add_dependency('useragent', '~> 0.4.12')
   s.add_dependency('stringex', '~> 1.4.0')
 
   s.add_development_dependency('RedCloth', '~> 4.2.9')
-  s.add_development_dependency('mocha', '~> 0.12.6')
-  s.add_development_dependency('org-ruby', '~> 0.7.1')
-  s.add_development_dependency('shoulda', '~> 3.1.1')
+  s.add_development_dependency('mocha', '~> 0.12.7')
+  s.add_development_dependency('org-ruby', '~> 0.7.2')
+  s.add_development_dependency('shoulda', '~> 3.3.1')
   s.add_development_dependency('rack-test', '~> 0.6.2')
   s.add_development_dependency('wikicloth', '~> 0.8.0')
   s.add_development_dependency('rake', '~> 0.9.2.2')