diff --git a/internal/biz/cron_notice.go b/internal/biz/cron_notice.go
index c65d294..581c478 100644
--- a/internal/biz/cron_notice.go
+++ b/internal/biz/cron_notice.go
@@ -86,10 +86,10 @@ func (this *VoucherBiz) timeSliceQuery(ctx context.Context, startTime, endTime t
 
 	log.Warnf("订单定时通知,开始处理,按每两个小时分片处理,范围:%s到%s", startTime.Format(time.DateTime), endTime.Format(time.DateTime))
 
-	duration := 3 * time.Hour
+	duration := 4 * time.Hour
 
 	eg := new(errgroup.Group)
-	eg.SetLimit(10)
+	eg.SetLimit(8)
 
 	for start := startTime; start.Before(endTime); start = start.Add(duration) {