diff --git a/.golangci.yml b/.golangci.yml
index 255d6aee..11442290 100644
--- a/.golangci.yml
+++ b/.golangci.yml
@@ -9,6 +9,8 @@ linters:
 
 run:
   skip-dirs:
+    - transport/simple-obfs
+    - transport/clashssr
     - transport/cloudflaretls
 
 linters-settings:
diff --git a/go.mod b/go.mod
index 0eb49d07..9df2d5d9 100644
--- a/go.mod
+++ b/go.mod
@@ -23,11 +23,11 @@ require (
 	github.com/refraction-networking/utls v1.2.0
 	github.com/sagernet/cloudflare-tls v0.0.0-20221031050923-d70792f4c3a0
 	github.com/sagernet/quic-go v0.0.0-20230202071646-a8c8afb18b32
-	github.com/sagernet/sing v0.1.6-0.20230114115804-bc788b027182
+	github.com/sagernet/sing v0.1.7-0.20230207063819-27d2950cdbe9
 	github.com/sagernet/sing-dns v0.1.3
 	github.com/sagernet/sing-shadowsocks v0.1.1-0.20230202035033-e3123545f2f7
 	github.com/sagernet/sing-tun v0.1.1
-	github.com/sagernet/sing-vmess v0.1.1
+	github.com/sagernet/sing-vmess v0.1.1-0.20230207064843-983dde690564
 	github.com/sagernet/smux v0.0.0-20220831015742-e0f1988e3195
 	github.com/sagernet/websocket v0.0.0-20220913015213-615516348b4e
 	github.com/sagernet/wireguard-go v0.0.0-20221116151939-c99467f53f2c
diff --git a/go.sum b/go.sum
index 593ee239..8ccac806 100644
--- a/go.sum
+++ b/go.sum
@@ -105,16 +105,16 @@ github.com/sagernet/quic-go v0.0.0-20230202071646-a8c8afb18b32 h1:tztuJB+giOWNRK
 github.com/sagernet/quic-go v0.0.0-20230202071646-a8c8afb18b32/go.mod h1:QMCkxXAC3CvBgDZVIJp43NWTuwGBScCzMLVLynjERL8=
 github.com/sagernet/sing v0.0.0-20220812082120-05f9836bff8f/go.mod h1:QVsS5L/ZA2Q5UhQwLrn0Trw+msNd/NPGEhBKR/ioWiY=
 github.com/sagernet/sing v0.0.0-20220817130738-ce854cda8522/go.mod h1:QVsS5L/ZA2Q5UhQwLrn0Trw+msNd/NPGEhBKR/ioWiY=
-github.com/sagernet/sing v0.1.6-0.20230114115804-bc788b027182 h1:TsLXlVXH7ql2yHOYczF6hfHrrAiMiS6itVG0HMJKJ08=
-github.com/sagernet/sing v0.1.6-0.20230114115804-bc788b027182/go.mod h1:JLSXsPTGRJFo/3X7EcAOCUgJH2/gAoxSJgBsnCZRp/w=
+github.com/sagernet/sing v0.1.7-0.20230207063819-27d2950cdbe9 h1:qnXh4RjHsNjdZXkfbqwVqAzYUfc160gfkS5gepmsA+A=
+github.com/sagernet/sing v0.1.7-0.20230207063819-27d2950cdbe9/go.mod h1:JLSXsPTGRJFo/3X7EcAOCUgJH2/gAoxSJgBsnCZRp/w=
 github.com/sagernet/sing-dns v0.1.3 h1:PbBK7wqkvnwGguhWtTV88fKvSUUr62+ENWs234Ddvns=
 github.com/sagernet/sing-dns v0.1.3/go.mod h1:+lFb7GBtFcuyt/mbf9M4Eal8xbycIhjBepGB+rckmBk=
 github.com/sagernet/sing-shadowsocks v0.1.1-0.20230202035033-e3123545f2f7 h1:Plup6oEiyLzY3HDqQ+QsUBzgBGdVmcsgf3t8h940z9U=
 github.com/sagernet/sing-shadowsocks v0.1.1-0.20230202035033-e3123545f2f7/go.mod h1:O5LtOs8Ivw686FqLpO0Zu+A0ROVE15VeqEK3yDRRAms=
 github.com/sagernet/sing-tun v0.1.1 h1:2Hg3GAyJWzQ7Ua1j74dE+mI06vaqSBO9yD4tkTjggn4=
 github.com/sagernet/sing-tun v0.1.1/go.mod h1:WzW/SkT+Nh9uJn/FIYUE2YJHYuPwfbh8sATOzU9QDGw=
-github.com/sagernet/sing-vmess v0.1.1 h1:WMdkJcc3icIqpDQZGQ7X+jfLilooIZ0zAaC0qeQTWFU=
-github.com/sagernet/sing-vmess v0.1.1/go.mod h1:COSSEmy19vMWOTEKIUSDiTEyx6yBfTYIzekDlCMow+Q=
+github.com/sagernet/sing-vmess v0.1.1-0.20230207064843-983dde690564 h1:+CFee8wEc79nFDBV8tDm2yKPrAXb5Mrf2Q5kM2Bb/xo=
+github.com/sagernet/sing-vmess v0.1.1-0.20230207064843-983dde690564/go.mod h1:9KkmnQzTL4Gvv8U2TRAH2BOITCGsGPpHtUPP5sxn5sY=
 github.com/sagernet/smux v0.0.0-20220831015742-e0f1988e3195 h1:5VBIbVw9q7aKbrFdT83mjkyvQ+VaRsQ6yflTepfln38=
 github.com/sagernet/smux v0.0.0-20220831015742-e0f1988e3195/go.mod h1:yedWtra8nyGJ+SyI+ziwuaGMzBatbB10P1IOOZbbSK8=
 github.com/sagernet/websocket v0.0.0-20220913015213-615516348b4e h1:7uw2njHFGE+VpWamge6o56j2RWk4omF6uLKKxMmcWvs=
diff --git a/outbound/proxy.go b/outbound/proxy.go
index 3b845dd9..dae0d9c5 100644
--- a/outbound/proxy.go
+++ b/outbound/proxy.go
@@ -3,8 +3,8 @@ package outbound
 import (
 	std_bufio "bufio"
 	"context"
+	"crypto/rand"
 	"encoding/hex"
-	"math/rand"
 	"net"
 
 	"github.com/sagernet/sing-box/adapter"