diff --git a/Casks/r/remote-buddy.rb b/Casks/r/remote-buddy.rb
index 187907fe21..b8dfc4679c 100644
--- a/Casks/r/remote-buddy.rb
+++ b/Casks/r/remote-buddy.rb
@@ -12,6 +12,8 @@ cask "remote-buddy" do
     regex(/Changes\s+in\s+version\s+(\d+(?:\.\d+)+)/i)
   end
 
+  depends_on macos: ">= :high_sierra"
+
   app "Remote Buddy.app"
 
   zap trash: [