diff --git a/Casks/unity4.rb b/Casks/unity4.rb
deleted file mode 100644
index 4cbc7981c..000000000
--- a/Casks/unity4.rb
+++ /dev/null
@@ -1,12 +0,0 @@
-cask 'unity4' do
-  version '4.6.4'
-  sha256 'd5d840f30d0987b3aef29dc3b651141cb5fb77fc3c28405b5ff667e03b01360a'
-
-  url "http://download.unity3d.com/download_unity/unity-#{version}.dmg"
-  homepage 'https://unity3d.com/unity/'
-  license :commercial
-
-  pkg 'Unity.pkg'
-
-  uninstall :pkgutil => 'com.unity3d.*'
-end