diff --git a/Casks/t/trader-workstation.rb b/Casks/t/trader-workstation.rb
index ff252b6580..8ca1446944 100644
--- a/Casks/t/trader-workstation.rb
+++ b/Casks/t/trader-workstation.rb
@@ -2,7 +2,7 @@ cask "trader-workstation" do
   arch arm: "arm", intel: "x64"
   os = on_arch_conditional arm: "macos", intel: "macosx"
 
-  version "10.27.1f"
+  version "10.28.1c"
   sha256 :no_check
 
   url "https://download2.interactivebrokers.com/installers/tws/latest/tws-latest-#{os}-#{arch}.dmg"