diff --git a/cmd/main.go b/cmd/main.go
index 29c1ca6..f903c4e 100644
--- a/cmd/main.go
+++ b/cmd/main.go
@@ -12,14 +12,15 @@ import (
 	"syscall"
 	"time"
 
-	D "github.com/xjasonlyu/tun2socks/component/fakedns"
-	S "github.com/xjasonlyu/tun2socks/component/session"
 	C "github.com/xjasonlyu/tun2socks/constant"
 	"github.com/xjasonlyu/tun2socks/core"
 	"github.com/xjasonlyu/tun2socks/filter"
 	"github.com/xjasonlyu/tun2socks/log"
 	"github.com/xjasonlyu/tun2socks/proxy"
 	"github.com/xjasonlyu/tun2socks/tun"
+
+	D "github.com/xjasonlyu/tun2socks/component/fakedns"
+	S "github.com/xjasonlyu/tun2socks/component/session"
 )
 
 const MTU = 1500
diff --git a/proxy/tcp.go b/proxy/tcp.go
index d5ad8d1..fabf8b6 100644
--- a/proxy/tcp.go
+++ b/proxy/tcp.go
@@ -9,11 +9,11 @@ import (
 
 	"github.com/xjasonlyu/tun2socks/common/lsof"
 	"github.com/xjasonlyu/tun2socks/common/pool"
-	D "github.com/xjasonlyu/tun2socks/component/fakedns"
-	S "github.com/xjasonlyu/tun2socks/component/session"
-	C "github.com/xjasonlyu/tun2socks/constant"
 	"github.com/xjasonlyu/tun2socks/core"
 	"github.com/xjasonlyu/tun2socks/log"
+
+	D "github.com/xjasonlyu/tun2socks/component/fakedns"
+	S "github.com/xjasonlyu/tun2socks/component/session"
 )
 
 type tcpHandler struct {
diff --git a/proxy/udp.go b/proxy/udp.go
index c2d170d..b0f39db 100644
--- a/proxy/udp.go
+++ b/proxy/udp.go
@@ -9,11 +9,11 @@ import (
 
 	"github.com/xjasonlyu/tun2socks/common/lsof"
 	"github.com/xjasonlyu/tun2socks/common/pool"
-	D "github.com/xjasonlyu/tun2socks/component/fakedns"
-	S "github.com/xjasonlyu/tun2socks/component/session"
-	C "github.com/xjasonlyu/tun2socks/constant"
 	"github.com/xjasonlyu/tun2socks/core"
 	"github.com/xjasonlyu/tun2socks/log"
+
+	D "github.com/xjasonlyu/tun2socks/component/fakedns"
+	S "github.com/xjasonlyu/tun2socks/component/session"
 )
 
 type udpHandler struct {