diff --git a/Casks/yasu.rb b/Casks/yasu.rb
deleted file mode 100644
index 63fdfd4ad8b..00000000000
--- a/Casks/yasu.rb
+++ /dev/null
@@ -1,42 +0,0 @@
-cask 'yasu' do
-  if MacOS.version <= :el_capitan
-    version '3.0.9,509'
-    sha256 'bc7716b2852cdbdc02aca085b5fa70cbf5a0983ed5ff1f489de0a86348527a0e'
-    url "https://yasuformac.com/appcasts/10.11/yasuformac_#{version.after_comma}.zip",
-        user_agent: :fake
-    appcast 'https://yasuformac.com/appcasts/10.11/yasu.xml'
-  elsif MacOS.version <= :sierra
-    version '4.0.5,605'
-    sha256 'dc18c2ee91144bd37b94ce6bab5cf2861b698432a301d1dd03be2bba23dbd609'
-    url "https://yasuformac.com/appcasts/10.12/yasuformac_#{version.after_comma}.zip",
-        user_agent: :fake
-    appcast 'https://yasuformac.com/appcasts/10.12/yasu.xml'
-  elsif MacOS.version <= :high_sierra
-    version '5.0.2,702'
-    sha256 '7c0b72e59a137467259ba140024f4d93eae599d09ffe7acb71c2c8f7790530b5'
-    url "https://yasuformac.com/appcasts/10.13/yasuformac_#{version.after_comma}.zip",
-        user_agent: :fake
-    appcast 'https://yasuformac.com/appcasts/10.13/yasu.xml'
-  else
-    version '6.0.1,801'
-    sha256 '18c1efbf6db86c7791017aae2ea72d0d1b4f153ec1e867b48b687b3252927582'
-    url "https://yasuformac.com/appcasts/10.14/yasuformac_#{version.after_comma}.zip",
-        user_agent: :fake
-    appcast 'https://yasuformac.com/appcasts/10.14/yasu.xml'
-  end
-
-  name 'Yasu'
-  homepage 'https://yasuformac.com/'
-
-  depends_on macos: '>= :el_capitan'
-
-  app 'Yasu for Mac.app'
-
-  zap trash: [
-               '~/Library/Caches/com.apple.helpd/Generated/net.yasuapp.yasu.help*',
-               '~/Library/Caches/net.yasuapp.yasu',
-               '~/Library/Logs/Yasu.log',
-               '~/Library/Preferences/net.yasuapp.yasu.plist',
-               '~/Library/Preferences/org.jimmitchell.yasu.plist',
-             ]
-end