diff --git a/guard-jasmine-headless-webkit.gemspec b/guard-jasmine-headless-webkit.gemspec
index eb29de0..be72bf4 100644
--- a/guard-jasmine-headless-webkit.gemspec
+++ b/guard-jasmine-headless-webkit.gemspec
@@ -20,6 +20,5 @@ Gem::Specification.new do |s|
   s.require_paths = ["lib"]
 
   s.add_dependency 'guard', '>= 0.2.2'
-  s.add_dependency 'POpen4'
   s.add_dependency 'jasmine-headless-webkit'
 end