diff --git a/Casks/m/manymc.rb b/Casks/m/manymc.rb
index ebe41dfd33..3a041f10e7 100644
--- a/Casks/m/manymc.rb
+++ b/Casks/m/manymc.rb
@@ -7,6 +7,8 @@ cask "manymc" do
   desc "Minecraft launcher with native arm64 support"
   homepage "https://github.com/MinecraftMachina/ManyMC"
 
+  deprecate! date: "2024-01-07", because: :discontinued
+
   depends_on arch: :arm64
   depends_on macos: ">= :big_sur"