diff --git a/go.mod b/go.mod
index c56765b0..6ab410c7 100644
--- a/go.mod
+++ b/go.mod
@@ -25,7 +25,7 @@ require (
 	github.com/sagernet/gomobile v0.0.0-20221130124640-349ebaa752ca
 	github.com/sagernet/quic-go v0.0.0-20230202071646-a8c8afb18b32
 	github.com/sagernet/reality v0.0.0-20230406110435-ee17307e7691
-	github.com/sagernet/sing v0.2.3-0.20230410085425-20b4148381c7
+	github.com/sagernet/sing v0.2.3-0.20230411023500-28b06822071a
 	github.com/sagernet/sing-dns v0.1.5-0.20230408004833-5adaf486d440
 	github.com/sagernet/sing-shadowsocks v0.2.1-0.20230409094647-5c830455eb9b
 	github.com/sagernet/sing-shadowtls v0.1.1-0.20230409094821-9abef019436f
diff --git a/go.sum b/go.sum
index 461deb51..ab22dc8c 100644
--- a/go.sum
+++ b/go.sum
@@ -111,8 +111,8 @@ github.com/sagernet/reality v0.0.0-20230406110435-ee17307e7691 h1:5Th31OC6yj8byL
 github.com/sagernet/reality v0.0.0-20230406110435-ee17307e7691/go.mod h1:B8lp4WkQ1PwNnrVMM6KyuFR20pU8jYBD+A4EhJovEXU=
 github.com/sagernet/sing v0.0.0-20220817130738-ce854cda8522/go.mod h1:QVsS5L/ZA2Q5UhQwLrn0Trw+msNd/NPGEhBKR/ioWiY=
 github.com/sagernet/sing v0.1.8/go.mod h1:jt1w2u7lJQFFSGLiRrRIs5YWmx4kAPfWuOejuDW9qMk=
-github.com/sagernet/sing v0.2.3-0.20230410085425-20b4148381c7 h1:ODs3QOkbKwkXwK0SrWxqbvuEdhr5sAAiUwtZHH+c+6w=
-github.com/sagernet/sing v0.2.3-0.20230410085425-20b4148381c7/go.mod h1:Ta8nHnDLAwqySzKhGoKk4ZIB+vJ3GTKj7UPrWYvM+4w=
+github.com/sagernet/sing v0.2.3-0.20230411023500-28b06822071a h1:Wt9rCd4Efev8SesIyG3FiUeN75oONlezWVSKRRkXR2E=
+github.com/sagernet/sing v0.2.3-0.20230411023500-28b06822071a/go.mod h1:Ta8nHnDLAwqySzKhGoKk4ZIB+vJ3GTKj7UPrWYvM+4w=
 github.com/sagernet/sing-dns v0.1.5-0.20230408004833-5adaf486d440 h1:VH8/BcOVuApHtS+vKP+khxlGRcXH7KKhgkTDtNynqSQ=
 github.com/sagernet/sing-dns v0.1.5-0.20230408004833-5adaf486d440/go.mod h1:69PNSHyEmXdjf6C+bXBOdr2GQnPeEyWjIzo/MV8gmz8=
 github.com/sagernet/sing-shadowsocks v0.2.1-0.20230409094647-5c830455eb9b h1:nmP+V4nlc8lqEMpwjjbny8ISkrFIjvKWIETsjs7nSic=
diff --git a/transport/v2raywebsocket/conn.go b/transport/v2raywebsocket/conn.go
index e050e2f2..e7571c84 100644
--- a/transport/v2raywebsocket/conn.go
+++ b/transport/v2raywebsocket/conn.go
@@ -69,6 +69,14 @@ func (c *WebsocketConn) SetDeadline(t time.Time) error {
 	return os.ErrInvalid
 }
 
+func (c *WebsocketConn) SetReadDeadline(t time.Time) error {
+	return os.ErrInvalid
+}
+
+func (c *WebsocketConn) SetWriteDeadline(t time.Time) error {
+	return os.ErrInvalid
+}
+
 func (c *WebsocketConn) Upstream() any {
 	return c.Conn.NetConn()
 }
@@ -195,24 +203,15 @@ func (c *EarlyWebsocketConn) RemoteAddr() net.Addr {
 }
 
 func (c *EarlyWebsocketConn) SetDeadline(t time.Time) error {
-	if c.conn == nil {
-		return os.ErrInvalid
-	}
-	return c.conn.SetDeadline(t)
+	return os.ErrInvalid
 }
 
 func (c *EarlyWebsocketConn) SetReadDeadline(t time.Time) error {
-	if c.conn == nil {
-		return os.ErrInvalid
-	}
-	return c.conn.SetReadDeadline(t)
+	return os.ErrInvalid
 }
 
 func (c *EarlyWebsocketConn) SetWriteDeadline(t time.Time) error {
-	if c.conn == nil {
-		return os.ErrInvalid
-	}
-	return c.conn.SetWriteDeadline(t)
+	return os.ErrInvalid
 }
 
 func (c *EarlyWebsocketConn) Upstream() any {