diff --git a/Gemfile b/Gemfile
index 344ea8bc..52539cfc 100644
--- a/Gemfile
+++ b/Gemfile
@@ -26,5 +26,5 @@ end
 
 group(:test) do
   gem('test-unit', '~> 3.6.5')
-  gem('warning', '~> 1.4.0')
+  gem('warning', '~> 1.5.0')
 end