diff --git a/go.mod b/go.mod
index 61323dd..cca6c85 100644
--- a/go.mod
+++ b/go.mod
@@ -8,7 +8,7 @@ require (
 	github.com/pkg/errors v0.9.1
 	github.com/tjfoc/gmsm v1.3.0 // indirect
 	github.com/urfave/cli v1.21.0
-	github.com/xtaci/kcp-go/v5 v5.5.10
+	github.com/xtaci/kcp-go/v5 v5.5.11
 	github.com/xtaci/smux v1.5.12
 	github.com/xtaci/tcpraw v1.2.25
 	golang.org/x/crypto v0.0.0-20200320181102-891825fb96df
diff --git a/go.sum b/go.sum
index e043187..633632a 100644
--- a/go.sum
+++ b/go.sum
@@ -35,6 +35,8 @@ github.com/xtaci/kcp-go/v5 v5.5.9 h1:Z/XENojlAkzVGlZJxw577Lfa3l8yPyQPAUBOJS8+qrs
 github.com/xtaci/kcp-go/v5 v5.5.9/go.mod h1:Oyw+zrBrO58urX1AaWV+2RynthEKcs+qrRAh0Q8YpdU=
 github.com/xtaci/kcp-go/v5 v5.5.10 h1:mBq2Vl/RaeDa/xfVru/OgzXeVJHNLrg2Ao+rK/U8vvI=
 github.com/xtaci/kcp-go/v5 v5.5.10/go.mod h1:Oyw+zrBrO58urX1AaWV+2RynthEKcs+qrRAh0Q8YpdU=
+github.com/xtaci/kcp-go/v5 v5.5.11 h1:wYvoREAp6bG3sYwtxhY1QelbB/1fNggCtkt2DwqFj2M=
+github.com/xtaci/kcp-go/v5 v5.5.11/go.mod h1:Oyw+zrBrO58urX1AaWV+2RynthEKcs+qrRAh0Q8YpdU=
 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 v1.5.12 h1:n9OGjdqQuVZXLh46+L4IR5tR2wvuUFwRABnN/V55bIY=