diff --git a/Casks/a/amm.rb b/Casks/a/amm.rb
index 5c319bf043..f006f1b7e8 100644
--- a/Casks/a/amm.rb
+++ b/Casks/a/amm.rb
@@ -7,9 +7,7 @@ cask "amm" do
   desc "Aria2 Menubar Monitor"
   homepage "https://github.com/15cm/AMM"
 
-  app "AMM.app"
+  deprecate! date: "2023-12-17", because: :discontinued
 
-  caveats do
-    discontinued
-  end
+  app "AMM.app"
 end