diff --git a/Casks/f/forklift.rb b/Casks/f/forklift.rb
index fb948cde9d..c5c405f360 100644
--- a/Casks/f/forklift.rb
+++ b/Casks/f/forklift.rb
@@ -13,6 +13,7 @@ cask "forklift" do
   end
 
   auto_updates true
+  conflicts_with cask: "homebrew/cask-versions/forklift3"
   depends_on macos: ">= :sierra"
 
   app "ForkLift.app"