diff --git a/CHANGELOG b/CHANGELOG
index f63bb0c..9f7f636 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,6 +1,8 @@
 proxy更新日志
 v4.9
 1.修复了HTTP Basic代理返回不合适的头部,导致浏览器不会弹框,个别代理插件无法认证的问题.
+2.mux内网穿透切换smux到yamux.
+
 
 v4.8
 1.优化了SPS连接HTTP上级的指令,避免了某些代理不响应的问题.
diff --git a/services/mux_bridge.go b/services/mux_bridge.go
index ad8921c..4140f50 100644
--- a/services/mux_bridge.go
+++ b/services/mux_bridge.go
@@ -14,7 +14,8 @@ import (
 
 	"github.com/snail007/goproxy/utils"
 
-	"github.com/xtaci/smux"
+	//"github.com/xtaci/smux"
+	smux "github.com/hashicorp/yamux"
 )
 
 type MuxBridge struct {
@@ -250,9 +251,9 @@ func (s *MuxBridge) callback(inConn net.Conn, serverID, key string) {
 		index := keys[i]
 		s.log.Printf("select client : %s-%s", key, index)
 		session, _ := group.Get(index)
-		session.(*smux.Session).SetDeadline(time.Now().Add(time.Millisecond * time.Duration(*s.cfg.Timeout)))
+		//session.(*smux.Session).SetDeadline(time.Now().Add(time.Millisecond * time.Duration(*s.cfg.Timeout)))
 		stream, err := session.(*smux.Session).OpenStream()
-		session.(*smux.Session).SetDeadline(time.Time{})
+		//session.(*smux.Session).SetDeadline(time.Time{})
 		if err != nil {
 			s.log.Printf("%s client session open stream %s fail, err: %s, retrying...", key, serverID, err)
 			time.Sleep(time.Second * 3)
diff --git a/services/mux_client.go b/services/mux_client.go
index 9b3efcb..6148c64 100644
--- a/services/mux_client.go
+++ b/services/mux_client.go
@@ -11,7 +11,8 @@ import (
 	"github.com/snail007/goproxy/utils"
 
 	"github.com/golang/snappy"
-	"github.com/xtaci/smux"
+	//"github.com/xtaci/smux"
+	smux "github.com/hashicorp/yamux"
 )
 
 type MuxClient struct {
diff --git a/services/mux_server.go b/services/mux_server.go
index 776429c..c3e5acf 100644
--- a/services/mux_server.go
+++ b/services/mux_server.go
@@ -15,7 +15,8 @@ import (
 	"github.com/snail007/goproxy/utils"
 
 	"github.com/golang/snappy"
-	"github.com/xtaci/smux"
+	//"github.com/xtaci/smux"
+	smux "github.com/hashicorp/yamux"
 )
 
 type MuxServer struct {