diff --git a/task/task.go b/task/task.go
index 37576f5..62ad309 100644
--- a/task/task.go
+++ b/task/task.go
@@ -24,7 +24,6 @@ var (
 )
 
 func NewRedis() *redis.Client {
-
 	once.Do(func() {
 		redisConfig := &cproto.Redis{}
 		_ = configv2.Get(configv2.Redis, redisConfig)
@@ -51,6 +50,7 @@ func NewTask() {
 
 func task(start, end int64) error {
 	redisClient := NewRedis()
+	defer func() { redisClient.Close() }()
 	result, err := redisClient.ZRangeWithScores(context.Background(), hotKey, start, end).Result()
 	if err != nil {
 		return err