diff --git a/server/proxy/https.go b/server/proxy/https.go
index 238f0489..1fb579e1 100644
--- a/server/proxy/https.go
+++ b/server/proxy/https.go
@@ -17,10 +17,11 @@ package proxy
 import (
 	"strings"
 
+	"golang.org/x/time/rate"
+
 	"github.com/fatedier/frp/pkg/config"
 	"github.com/fatedier/frp/pkg/util/util"
 	"github.com/fatedier/frp/pkg/util/vhost"
-	"golang.org/x/time/rate"
 )
 
 type HTTPSProxy struct {
diff --git a/server/proxy/stcp.go b/server/proxy/stcp.go
index fd45e69b..2ece4057 100644
--- a/server/proxy/stcp.go
+++ b/server/proxy/stcp.go
@@ -15,8 +15,9 @@
 package proxy
 
 import (
-	"github.com/fatedier/frp/pkg/config"
 	"golang.org/x/time/rate"
+
+	"github.com/fatedier/frp/pkg/config"
 )
 
 type STCPProxy struct {
diff --git a/server/proxy/sudp.go b/server/proxy/sudp.go
index b327b8a2..93707f23 100644
--- a/server/proxy/sudp.go
+++ b/server/proxy/sudp.go
@@ -15,8 +15,9 @@
 package proxy
 
 import (
-	"github.com/fatedier/frp/pkg/config"
 	"golang.org/x/time/rate"
+
+	"github.com/fatedier/frp/pkg/config"
 )
 
 type SUDPProxy struct {
diff --git a/server/proxy/tcp.go b/server/proxy/tcp.go
index feae2c17..1ba0fb1a 100644
--- a/server/proxy/tcp.go
+++ b/server/proxy/tcp.go
@@ -19,8 +19,9 @@ import (
 	"net"
 	"strconv"
 
-	"github.com/fatedier/frp/pkg/config"
 	"golang.org/x/time/rate"
+
+	"github.com/fatedier/frp/pkg/config"
 )
 
 type TCPProxy struct {
diff --git a/server/proxy/tcpmux.go b/server/proxy/tcpmux.go
index 7de43ef5..4b413c36 100644
--- a/server/proxy/tcpmux.go
+++ b/server/proxy/tcpmux.go
@@ -19,11 +19,12 @@ import (
 	"net"
 	"strings"
 
+	"golang.org/x/time/rate"
+
 	"github.com/fatedier/frp/pkg/config"
 	"github.com/fatedier/frp/pkg/consts"
 	"github.com/fatedier/frp/pkg/util/util"
 	"github.com/fatedier/frp/pkg/util/vhost"
-	"golang.org/x/time/rate"
 )
 
 type TCPMuxProxy struct {