diff --git a/Casks/arq3.rb b/Casks/arq3.rb
deleted file mode 100644
index 021058777..000000000
--- a/Casks/arq3.rb
+++ /dev/null
@@ -1,11 +0,0 @@
-cask 'arq3' do
-  version '3.3.4'
-  sha256 '2b4317b83d14090764f2134d4cc0fa3ee18b102974cff935f47a8afb4b3860a2'
-
-  url "https://www.haystacksoftware.com/arq/Arq_#{version}.zip"
-  name 'Arq'
-  homepage 'https://www.haystacksoftware.com/arq/'
-  license :commercial
-
-  app 'Arq.app'
-end