diff --git a/proxy/shadowsocks/server.go b/proxy/shadowsocks/server.go
index bfdca366d..c6dc8b41f 100644
--- a/proxy/shadowsocks/server.go
+++ b/proxy/shadowsocks/server.go
@@ -4,16 +4,15 @@ import (
 	"context"
 	"time"
 
-	"v2ray.com/core/common/session"
-	"v2ray.com/core/common/task"
-
 	"v2ray.com/core"
 	"v2ray.com/core/common"
 	"v2ray.com/core/common/buf"
 	"v2ray.com/core/common/log"
 	"v2ray.com/core/common/net"
 	"v2ray.com/core/common/protocol"
+	"v2ray.com/core/common/session"
 	"v2ray.com/core/common/signal"
+	"v2ray.com/core/common/task"
 	"v2ray.com/core/proxy"
 	"v2ray.com/core/transport/internet"
 	"v2ray.com/core/transport/internet/udp"