diff --git a/go.mod b/go.mod
index 4717d58..795af8b 100644
--- a/go.mod
+++ b/go.mod
@@ -11,7 +11,7 @@ require (
 	github.com/templexxx/xor v0.0.0-20181023030647-4e92f724b73b // indirect
 	github.com/tjfoc/gmsm v1.0.1 // indirect
 	github.com/urfave/cli v1.21.0
-	github.com/xtaci/kcp-go v5.4.7+incompatible
+	github.com/xtaci/kcp-go v5.4.8+incompatible
 	github.com/xtaci/lossyconn v0.0.0-20190602105132-8df528c0c9ae // indirect
 	github.com/xtaci/smux v1.4.4
 	github.com/xtaci/smux/v2 v2.0.11
diff --git a/go.sum b/go.sum
index 9d6271c..376241c 100644
--- a/go.sum
+++ b/go.sum
@@ -21,6 +21,8 @@ github.com/urfave/cli v1.21.0 h1:wYSSj06510qPIzGSua9ZqsncMmWE3Zr55KBERygyrxE=
 github.com/urfave/cli v1.21.0/go.mod h1:lxDj6qX9Q6lWQxIrbrT0nwecwUtRnhVZAJjJZrVUZZQ=
 github.com/xtaci/kcp-go v5.4.7+incompatible h1:0WXorSb87WBIVjXWv618klAeCh8H32NcDpWq+g04x2E=
 github.com/xtaci/kcp-go v5.4.7+incompatible/go.mod h1:bN6vIwHQbfHaHtFpEssmWsN45a+AZwO7eyRCmEIbtvE=
+github.com/xtaci/kcp-go v5.4.8+incompatible h1:4GnTyiiC1S7ZFBMKvsF0gMJ3MoN1BoiFRCQ7IuAeUB0=
+github.com/xtaci/kcp-go v5.4.8+incompatible/go.mod h1:bN6vIwHQbfHaHtFpEssmWsN45a+AZwO7eyRCmEIbtvE=
 github.com/xtaci/lossyconn v0.0.0-20190602105132-8df528c0c9ae h1:J0GxkO96kL4WF+AIT3M4mfUVinOCPgf2uUWYFUzN0sM=
 github.com/xtaci/lossyconn v0.0.0-20190602105132-8df528c0c9ae/go.mod h1:gXtu8J62kEgmN++bm9BVICuT/e8yiLI2KFobd/TRFsE=
 github.com/xtaci/smux v1.4.4 h1:FukIfahko+KHhS9Gxppkp6756opZymvPOLNmpny1is4=