diff --git a/README.md b/README.md
index 5a8b2c6..1ab4e0a 100644
--- a/README.md
+++ b/README.md
@@ -2,8 +2,6 @@
 
 trade/create 性能问题，缩短事务时间，考虑其他方式实现可靠分布式事务
 
-需要确认以下 ID.GenSerial 的分布式并发安全性
-
 jsonb 类型转换问题，考虑一个高效的 any 到 struct 转换工具
 
 端口资源池的 gc 实现
diff --git a/web/services/id.go b/web/services/id.go
index 3373bec..c394928 100644
--- a/web/services/id.go
+++ b/web/services/id.go
@@ -44,48 +44,28 @@ var (
 )
 
 func (s *IdService) GenSerial() (string, error) {
-	var ctx = context.Background()
-
-	// 构造Redis键
 	now := time.Now().Unix()
-	key := idSerialKey(now)
 
-	// 使用Redis事务确保原子操作
-	var sequence int64
-	err := g.Redis.Watch(ctx, func(tx *redis.Tx) error {
+	// 脚本实现原子操作
+	script := redis.NewScript(`
+		local current = tonumber(redis.call('GET', KEYS[1])) or 0
+		if current >= tonumber(ARGV[1]) then
+		    return redis.error_reply('sequence overflow')
+		end
 
-		// 获取当前序列号
-		currentVal, err := tx.Get(ctx, key).Int64()
-		if err != nil && !errors.Is(err, redis.Nil) {
-			return err
-		}
+		local sequence = current + 1
+		redis.call('SET', KEYS[1], sequence, 'EX', ARGV[2])
 
-		if errors.Is(err, redis.Nil) {
-			currentVal = 0
-		}
-		sequence = currentVal + 1
-
-		// 检查序列号是否溢出
-		if sequence > maxSequence {
-			return ErrSequenceOverflow
-		}
-
-		// 将更新后的序列号保存回Redis，设置5秒过期时间
-		pipe := tx.Pipeline()
-		pipe.Set(ctx, key, sequence, redisTTL*time.Second)
-		_, err = pipe.Exec(ctx)
-		return err
-	}, key)
+		return sequence
+	`)
+	sequence, err := script.Run(context.Background(), g.Redis, []string{idSerialKey(now)}, maxSequence, redisTTL).Int64()
 	if err != nil {
 		return "", err
 	}
 
 	// 组装最终ID
 	id := uint64((now << timestampShift) | sequence)
-
-	idStr := strconv.FormatUint(id, 10)
-
-	return idStr, nil
+	return strconv.FormatUint(id, 10), nil
 }
 
 // ParseSerial 解析ID，返回其组成部分
@@ -98,7 +78,7 @@ func (s *IdService) ParseSerial(id uint64) (timestamp int64, sequence int64) {
 
 // idSerialKey 根据时间戳生成Redis键
 func idSerialKey(timestamp int64) string {
-	return fmt.Sprintf("global:id:serial:%d", timestamp)
+	return fmt.Sprintf("id:serial:%d", timestamp)
 }
 
 // endregion