diff --git a/go.mod b/go.mod
index a0adf8a..6075cc4 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module github.com/sagernet/sing-shadowsocks
 go 1.18
 
 require (
-	github.com/sagernet/sing v0.2.3
+	github.com/sagernet/sing v0.2.4-0.20230417102916-f4e8bc868f61
 	golang.org/x/crypto v0.7.0
 	lukechampine.com/blake3 v1.1.7
 )
diff --git a/go.sum b/go.sum
index c691242..6389679 100644
--- a/go.sum
+++ b/go.sum
@@ -1,8 +1,8 @@
 github.com/klauspost/cpuid/v2 v2.0.9/go.mod h1:FInQzS24/EEf25PyTYn52gqo7WaD8xa0213Md/qVLRg=
 github.com/klauspost/cpuid/v2 v2.0.12 h1:p9dKCg8i4gmOxtv35DvrYoWqYzQrvEVdjQ762Y0OqZE=
 github.com/klauspost/cpuid/v2 v2.0.12/go.mod h1:g2LTdtYhdyuGPqyWyv7qRAmj1WBqxuObKfj5c0PQa7c=
-github.com/sagernet/sing v0.2.3 h1:V50MvZ4c3Iij2lYFWPlzL1PyipwSzjGeN9x+Ox89vpk=
-github.com/sagernet/sing v0.2.3/go.mod h1:Ta8nHnDLAwqySzKhGoKk4ZIB+vJ3GTKj7UPrWYvM+4w=
+github.com/sagernet/sing v0.2.4-0.20230417102916-f4e8bc868f61 h1:1pISBNsAYZ6o1oZiNhEkoVDYWfcZQJoRtwRnJuuqndg=
+github.com/sagernet/sing v0.2.4-0.20230417102916-f4e8bc868f61/go.mod h1:Ta8nHnDLAwqySzKhGoKk4ZIB+vJ3GTKj7UPrWYvM+4w=
 golang.org/x/crypto v0.7.0 h1:AvwMYaRytfdeVt3u6mLaxYtErKYjxA2OXjJ1HHq6t3A=
 golang.org/x/crypto v0.7.0/go.mod h1:pYwdfH91IfpZVANVyUOhSIPZaFoJGxTFbZhFTx+dXZU=
 golang.org/x/sys v0.7.0 h1:3jlCCIQZPdOYu1h8BkNvLz8Kgwtae2cagcG/VamtZRU=
diff --git a/shadowaead/protocol.go b/shadowaead/protocol.go
index 32f71c0..089ad23 100644
--- a/shadowaead/protocol.go
+++ b/shadowaead/protocol.go
@@ -11,7 +11,6 @@ import (
 	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/buf"
 	"github.com/sagernet/sing/common/bufio"
-	"github.com/sagernet/sing/common/bufio/deadline"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
 	"github.com/sagernet/sing/common/rw"
@@ -95,15 +94,15 @@ func (m *Method) DialConn(conn net.Conn, destination M.Socksaddr) (net.Conn, err
 		Method:      m,
 		destination: destination,
 	}
-	return deadline.NewConn(shadowsocksConn), shadowsocksConn.writeRequest(nil)
+	return shadowsocksConn, shadowsocksConn.writeRequest(nil)
 }
 
 func (m *Method) DialEarlyConn(conn net.Conn, destination M.Socksaddr) net.Conn {
-	return deadline.NewConn(&clientConn{
+	return &clientConn{
 		Conn:        conn,
 		Method:      m,
 		destination: destination,
-	})
+	}
 }
 
 func (m *Method) DialPacketConn(conn net.Conn) N.NetPacketConn {
@@ -232,6 +231,10 @@ func (c *clientConn) NeedHandshake() bool {
 	return c.writer == nil
 }
 
+func (c *clientConn) NeedAdditionalReadDeadline() bool {
+	return true
+}
+
 func (c *clientConn) Upstream() any {
 	return c.Conn
 }
diff --git a/shadowaead/service.go b/shadowaead/service.go
index 117e0bc..c358089 100644
--- a/shadowaead/service.go
+++ b/shadowaead/service.go
@@ -12,7 +12,6 @@ import (
 	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/buf"
 	"github.com/sagernet/sing/common/bufio"
-	"github.com/sagernet/sing/common/bufio/deadline"
 	E "github.com/sagernet/sing/common/exceptions"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
@@ -97,11 +96,11 @@ func (s *Service) newConnection(ctx context.Context, conn net.Conn, metadata M.M
 	metadata.Protocol = "shadowsocks"
 	metadata.Destination = destination
 
-	return s.handler.NewConnection(ctx, deadline.NewConn(&serverConn{
+	return s.handler.NewConnection(ctx, &serverConn{
 		Method: s.Method,
 		Conn:   conn,
 		reader: reader,
-	}), metadata)
+	}, metadata)
 }
 
 func (s *Service) NewError(ctx context.Context, err error) {
@@ -185,6 +184,10 @@ func (c *serverConn) WriteTo(w io.Writer) (n int64, err error) {
 	return c.reader.WriteTo(w)
 }
 
+func (c *serverConn) NeedAdditionalReadDeadline() bool {
+	return true
+}
+
 func (c *serverConn) Upstream() any {
 	return c.Conn
 }
diff --git a/shadowaead_2022/protocol.go b/shadowaead_2022/protocol.go
index 022f932..b4f2bde 100644
--- a/shadowaead_2022/protocol.go
+++ b/shadowaead_2022/protocol.go
@@ -22,7 +22,6 @@ import (
 	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/buf"
 	"github.com/sagernet/sing/common/bufio"
-	"github.com/sagernet/sing/common/bufio/deadline"
 	E "github.com/sagernet/sing/common/exceptions"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
@@ -199,15 +198,15 @@ func (m *Method) DialConn(conn net.Conn, destination M.Socksaddr) (net.Conn, err
 		Conn:        conn,
 		destination: destination,
 	}
-	return deadline.NewConn(shadowsocksConn), shadowsocksConn.writeRequest(nil)
+	return shadowsocksConn, shadowsocksConn.writeRequest(nil)
 }
 
 func (m *Method) DialEarlyConn(conn net.Conn, destination M.Socksaddr) net.Conn {
-	return deadline.NewConn(&clientConn{
+	return &clientConn{
 		Method:      m,
 		Conn:        conn,
 		destination: destination,
-	})
+	}
 }
 
 func (m *Method) DialPacketConn(conn net.Conn) N.NetPacketConn {
@@ -461,6 +460,10 @@ func (c *clientConn) NeedHandshake() bool {
 	return c.writer == nil
 }
 
+func (c *clientConn) NeedAdditionalReadDeadline() bool {
+	return true
+}
+
 func (c *clientConn) Upstream() any {
 	return c.Conn
 }
diff --git a/shadowaead_2022/service.go b/shadowaead_2022/service.go
index 1dde659..c904d80 100644
--- a/shadowaead_2022/service.go
+++ b/shadowaead_2022/service.go
@@ -21,7 +21,6 @@ import (
 	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/buf"
 	"github.com/sagernet/sing/common/bufio"
-	"github.com/sagernet/sing/common/bufio/deadline"
 	"github.com/sagernet/sing/common/cache"
 	E "github.com/sagernet/sing/common/exceptions"
 	M "github.com/sagernet/sing/common/metadata"
@@ -246,7 +245,7 @@ func (s *Service) newConnection(ctx context.Context, conn net.Conn, metadata M.M
 
 	metadata.Protocol = "shadowsocks"
 	metadata.Destination = destination
-	return s.handler.NewConnection(ctx, deadline.NewConn(protocolConn), metadata)
+	return s.handler.NewConnection(ctx, protocolConn, metadata)
 }
 
 type serverConn struct {
@@ -382,6 +381,10 @@ func (c *serverConn) Close() error {
 	)
 }
 
+func (c *serverConn) NeedAdditionalReadDeadline() bool {
+	return true
+}
+
 func (c *serverConn) Upstream() any {
 	return c.Conn
 }
diff --git a/shadowaead_2022/service_multi.go b/shadowaead_2022/service_multi.go
index 65f2b9c..c3e544d 100644
--- a/shadowaead_2022/service_multi.go
+++ b/shadowaead_2022/service_multi.go
@@ -17,7 +17,6 @@ import (
 	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/auth"
 	"github.com/sagernet/sing/common/buf"
-	"github.com/sagernet/sing/common/bufio/deadline"
 	E "github.com/sagernet/sing/common/exceptions"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
@@ -243,7 +242,7 @@ func (s *MultiService[U]) newConnection(ctx context.Context, conn net.Conn, meta
 	protocolConn.reader = reader
 	metadata.Protocol = "shadowsocks"
 	metadata.Destination = destination
-	return s.handler.NewConnection(auth.ContextWithUser(ctx, user), deadline.NewConn(protocolConn), metadata)
+	return s.handler.NewConnection(auth.ContextWithUser(ctx, user), protocolConn, metadata)
 }
 
 func (s *MultiService[U]) WriteIsThreadUnsafe() {
diff --git a/shadowstream/protocol.go b/shadowstream/protocol.go
index 0238690..2731d38 100644
--- a/shadowstream/protocol.go
+++ b/shadowstream/protocol.go
@@ -13,7 +13,6 @@ import (
 	"github.com/sagernet/sing-shadowsocks"
 	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/buf"
-	"github.com/sagernet/sing/common/bufio/deadline"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
 
@@ -144,15 +143,15 @@ func (m *Method) DialConn(conn net.Conn, destination M.Socksaddr) (net.Conn, err
 		Conn:        conn,
 		destination: destination,
 	}
-	return deadline.NewConn(shadowsocksConn), shadowsocksConn.writeRequest()
+	return shadowsocksConn, shadowsocksConn.writeRequest()
 }
 
 func (m *Method) DialEarlyConn(conn net.Conn, destination M.Socksaddr) net.Conn {
-	return deadline.NewConn(&clientConn{
+	return &clientConn{
 		Method:      m,
 		Conn:        conn,
 		destination: destination,
-	})
+	}
 }
 
 func (m *Method) DialPacketConn(conn net.Conn) N.NetPacketConn {
@@ -239,6 +238,10 @@ func (c *clientConn) Write(p []byte) (n int, err error) {
 	return c.Conn.Write(p)
 }
 
+func (c *clientConn) NeedAdditionalReadDeadline() bool {
+	return true
+}
+
 func (c *clientConn) Upstream() any {
 	return c.Conn
 }