diff --git a/coffeelint.gemspec b/coffeelint.gemspec
index b6da87c..9b8e849 100644
--- a/coffeelint.gemspec
+++ b/coffeelint.gemspec
@@ -22,6 +22,6 @@ Gem::Specification.new do |gem|
   gem.add_dependency "json"
   gem.add_dependency "execjs"
 
-  gem.add_development_dependency 'rspec', '~> 3.1.0'
+  gem.add_development_dependency 'rspec', '~> 3.4.0'
   gem.add_development_dependency 'rake', '~>11.3.0'
 end