diff --git a/Casks/r/runcat-plugins-manager.rb b/Casks/r/runcat-plugins-manager.rb
deleted file mode 100644
index de2316bdca..0000000000
--- a/Casks/r/runcat-plugins-manager.rb
+++ /dev/null
@@ -1,25 +0,0 @@
-cask "runcat-plugins-manager" do
-  version "1.3.0"
-  sha256 :no_check
-
-  url "https://kyome.io/resources/runcat_plugins_manager.dmg"
-  name "RunCat Plugins Manager"
-  desc "Enable RunCat to show the CPU temperature"
-  homepage "https://kyome.io/runcat/index.html?lang=en#plugins"
-
-  livecheck do
-    url :url
-    strategy :extract_plist
-  end
-
-  depends_on macos: ">= :catalina"
-
-  app "RunCat Plugins Manager.app"
-
-  zap trash: [
-    "~/Library/Application Scripts/com.kyome.RunCatPlugins",
-    "~/Library/Application Scripts/com.kyome.RunCatPluginsManager",
-    "~/Library/Containers/com.kyome.RunCatPlugins",
-    "~/Library/Containers/com.kyome.RunCatPluginsManager",
-  ]
-end