diff --git a/dock0.gemspec b/dock0.gemspec
index cefc773..efb0b54 100644
--- a/dock0.gemspec
+++ b/dock0.gemspec
@@ -22,7 +22,7 @@ Gem::Specification.new do |s|
   s.add_dependency 'meld', '~> 1.0.0'
   s.add_dependency 'cymbal', '~> 1.0.0'
 
-  s.add_development_dependency 'rubocop', '~> 0.33.0'
+  s.add_development_dependency 'rubocop', '~> 0.34.0'
   s.add_development_dependency 'rake', '~> 10.4.0'
   s.add_development_dependency 'coveralls', '~> 0.8.0'
   s.add_development_dependency 'rspec', '~> 3.3.0'