diff --git a/internal/app/api/service/bilbil_picture.go b/internal/app/api/service/bilbil_picture.go
index aa7e857..6549795 100644
--- a/internal/app/api/service/bilbil_picture.go
+++ b/internal/app/api/service/bilbil_picture.go
@@ -139,7 +139,7 @@ func (service *BilbilPicture) Recommend(ctx context.Context, req idl.BilibiliPic
 	tx := service.db.WithContext(ctx)
 	picRepository := repository.NewBilibiliPicture(tx)
 	now := time.Now()
-	list, err := picRepository.Recommend(now.Add(-(3 * 24 * time.Hour)), now, req.Page, picRecommendDefaultSize, req.TopicID)
+	list, err := picRepository.Recommend(now.Add(-(30 * 24 * time.Hour)), now, req.Page, picRecommendDefaultSize, req.TopicID)
 	if err != nil {
 		return nil, err
 	}