diff --git a/Casks/rubymine633.rb b/Casks/rubymine633.rb
deleted file mode 100644
index 7af9f2a36..000000000
--- a/Casks/rubymine633.rb
+++ /dev/null
@@ -1,31 +0,0 @@
-cask 'rubymine633' do
-  version '6.3.3'
-  sha256 'c79216de02f2564ea60592420342ab9fb5014da7e7c96f92e2856dc49f2090dd'
-
-  url "https://download.jetbrains.com/ruby/RubyMine-#{version}.dmg"
-  name 'RubyMine'
-  homepage 'https://confluence.jetbrains.com/display/RUBYDEV/Previous+RubyMine+Releases'
-  license :commercial
-
-  app 'RubyMine.app'
-
-  zap :delete => [
-                  '~/Library/Preferences/com.jetbrains.rubymine.plist',
-                  '~/Library/Preferences/RubyMine60',
-                  '~/Library/Application Support/RubyMine60',
-                  '~/Library/Caches/RubyMine60',
-                  '~/Library/Logs/RubyMine60',
-                  '/usr/local/bin/mine',
-                 ]
-
-  caveats <<-EOS.undent
-    #{token} requires Java 6 like any other IntelliJ-based IDE.
-    You can install it with
-
-      brew cask install caskroom/homebrew-versions/java6
-
-    The vendor (JetBrains) doesn't support newer versions of Java (yet)
-    due to several critical issues, see details at
-    https://intellij-support.jetbrains.com/entries/27854363
-  EOS
-end