diff --git a/internal/biz/vo/cache.go b/internal/biz/vo/cache.go
index 05ffe31..5029641 100644
--- a/internal/biz/vo/cache.go
+++ b/internal/biz/vo/cache.go
@@ -48,7 +48,7 @@ var CacheKeyMap = map[CacheKey]time.Duration{
 	ProductQueryKey:     30 * 86400 * time.Second, // 30天
 	ProductQueryLockKey: 30 * time.Second,
 
-	WarningBudgetSendIncr: 2 * time.Hour,
+	WarningBudgetSendIncr: 3 * time.Hour,
 }
 
 type Cache struct {