diff --git a/Casks/unity.rb b/Casks/unity.rb
index 2d9ab4a1883..366ff55d671 100644
--- a/Casks/unity.rb
+++ b/Casks/unity.rb
@@ -1,6 +1,6 @@
 cask :v1 => 'unity' do
-  version '4.6.3'
-  sha256 '7a64891d46520f448cecd7ee0fa3dd3d33568f806af924048bba099047d38a59'
+  version '4.6.4'
+  sha256 'd5d840f30d0987b3aef29dc3b651141cb5fb77fc3c28405b5ff667e03b01360a'
 
   url "http://netstorage.unity3d.com/unity/unity-#{version}.dmg"
   homepage 'http://unity3d.com/unity/'