diff --git a/Formula/s/sui.rb b/Formula/s/sui.rb
index aa2221ff8af93..e55d917a7caae 100644
--- a/Formula/s/sui.rb
+++ b/Formula/s/sui.rb
@@ -1,8 +1,8 @@
 class Sui < Formula
   desc "Next-generation smart contract platform powered by the Move programming language"
   homepage "https://sui.io"
-  url "https://github.com/MystenLabs/sui/archive/refs/tags/testnet-v1.27.2.tar.gz"
-  sha256 "b665f10f9612b5cb8dc11723055823d1569628d34e266806a2c192b10fcbc75f"
+  url "https://github.com/MystenLabs/sui/archive/refs/tags/testnet-v1.28.1.tar.gz"
+  sha256 "e4ba039687c9a524cf827eb6ddf760a91fefcd7b6901a99ee860a9f8ed68b103"
   license "Apache-2.0"
 
   livecheck do