diff --git a/Casks/d/dotnet-sdk.rb b/Casks/d/dotnet-sdk.rb
index f8082bb92c..65650d891a 100644
--- a/Casks/d/dotnet-sdk.rb
+++ b/Casks/d/dotnet-sdk.rb
@@ -22,8 +22,8 @@ cask "dotnet-sdk" do
 
   conflicts_with cask: [
     "dotnet",
-    "homebrew/cask-versions/dotnet-preview",
-    "homebrew/cask-versions/dotnet-sdk-preview",
+    "dotnet-preview",
+    "dotnet-sdk-preview",
   ], formula: "dotnet"
   depends_on macos: ">= :mojave"