diff --git a/kcptun/go b/kcptun/go
index 70f0438db8..c3f75e654d 160000
--- a/kcptun/go
+++ b/kcptun/go
@@ -1 +1 @@
-Subproject commit 70f0438db89066e5ed9fdd78f6e99d40f4a76ab3
+Subproject commit c3f75e654ddb95bd53351294337649c08e9f9409