diff --git a/Dockerfile b/Dockerfile
index d7761e2..d694fba 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # Build go
-FROM golang:1.24.0-alpine AS builder
+FROM golang:1.24.1-alpine AS builder
 WORKDIR /app
 COPY . .
 ENV CGO_ENABLED=0
diff --git a/core/sing/hook.go b/core/sing/hook.go
index 98ef871..da63df8 100644
--- a/core/sing/hook.go
+++ b/core/sing/hook.go
@@ -5,9 +5,11 @@ import (
 	"fmt"
 	"net"
 	"sync"
+	"time"
 
 	"github.com/InazumaV/V2bX/common/format"
 	"github.com/InazumaV/V2bX/common/rate"
+	"github.com/InazumaV/V2bX/common/task"
 
 	"github.com/InazumaV/V2bX/limiter"
 
@@ -19,9 +21,15 @@ import (
 
 var _ adapter.ConnectionTracker = (*HookServer)(nil)
 
+type ConnEntry struct {
+	Conn      net.Conn
+	Timestamp time.Time
+}
+
 type HookServer struct {
 	counter  sync.Map //map[string]*counter.TrafficCounter
-	userconn sync.Map //map[string][]net.Conn
+	userconn sync.Map //map[string][]*ConnEntry
+	Cleanup  *task.Task
 }
 
 func (h *HookServer) ModeList() []string {
@@ -33,6 +41,10 @@ func NewHookServer() *HookServer {
 		counter:  sync.Map{},
 		userconn: sync.Map{},
 	}
+	server.Cleanup = &task.Task{
+		Interval: 5 * time.Minute,
+		Execute:  server.CleanupOldConnections,
+	}
 	return server
 }
 
@@ -82,14 +94,19 @@ func (h *HookServer) RoutedConnection(_ context.Context, conn net.Conn, m adapte
 	}
 
 	conn = counter.NewConnCounter(conn, t.GetCounter(m.User))
+	entry := &ConnEntry{
+		Conn:      conn,
+		Timestamp: time.Now(),
+	}
 	if conns, exist := h.userconn.Load(taguuid); exist {
-		if connList, ok := conns.([]net.Conn); ok {
-			h.userconn.Store(taguuid, append(connList, conn))
+		if connList, ok := conns.([]*ConnEntry); ok {
+			h.userconn.Store(taguuid, append(connList, entry))
 		} else {
-			h.userconn.Store(taguuid, []net.Conn{conn})
+			h.userconn.Delete(taguuid)
+			h.userconn.Store(taguuid, []*ConnEntry{entry})
 		}
 	} else {
-		h.userconn.Store(taguuid, []net.Conn{conn})
+		h.userconn.Store(taguuid, []*ConnEntry{entry})
 	}
 
 	return conn
@@ -150,14 +167,14 @@ func (h *HookServer) CloseConnections(tag string, uuids []string) error {
 		if !ok {
 			continue
 		}
-		connList, ok := v.([]net.Conn)
+		connList, ok := v.([]*ConnEntry)
 		if !ok {
 			h.userconn.Delete(taguuid)
 			continue
 		}
 
-		for _, conn := range connList {
-			err := conn.Close()
+		for _, entry := range connList {
+			err := entry.Conn.Close()
 			if err != nil {
 				log.Error("close conn error: ", err)
 			}
@@ -166,3 +183,29 @@ func (h *HookServer) CloseConnections(tag string, uuids []string) error {
 	}
 	return nil
 }
+
+func (h *HookServer) CleanupOldConnections() error {
+	expiredTime := time.Now().Add(-time.Minute * 30)
+	h.userconn.Range(func(key, value interface{}) bool {
+		connList, ok := value.([]*ConnEntry)
+		if !ok {
+			h.userconn.Delete(key)
+			return true
+		}
+
+		var activeConns []*ConnEntry
+		for _, entry := range connList {
+			if entry.Timestamp.After(expiredTime) {
+				activeConns = append(activeConns, entry)
+			}
+		}
+
+		if len(activeConns) == 0 {
+			h.userconn.Delete(key)
+		} else {
+			h.userconn.Store(key, activeConns)
+		}
+		return true
+	})
+	return nil
+}
diff --git a/core/sing/sing.go b/core/sing/sing.go
index c47deed..031229f 100644
--- a/core/sing/sing.go
+++ b/core/sing/sing.go
@@ -83,6 +83,7 @@ func New(c *conf.CoreConfig) (vCore.Core, error) {
 }
 
 func (b *Sing) Start() error {
+	b.hookServer.Cleanup.Start(false)
 	return b.box.Start()
 }