diff --git a/gollum.gemspec b/gollum.gemspec
index 3f91ed97..301e36b4 100644
--- a/gollum.gemspec
+++ b/gollum.gemspec
@@ -31,8 +31,8 @@ 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', '~> 0.4.13')
-  s.add_dependency('stringex', '~> 1.5.0')
+  s.add_dependency('useragent', '~> 0.4.15')
+  s.add_dependency('stringex', '~> 1.5.1')
 
   s.add_development_dependency('RedCloth', '~> 4.2.9')
   s.add_development_dependency('mocha', '~> 0.13.0')