diff --git a/bid-consign.go b/bid-consign.go
index e67a86a..0157c8c 100644
--- a/bid-consign.go
+++ b/bid-consign.go
@@ -14,7 +14,7 @@ import (
 //https://open.dewu.com/#/api/body?apiId=42&id=3&title=%E5%87%BA%E4%BB%B7%E6%9C%8D%E5%8A%A1API
 
 type BidClient interface {
-	LowestPrice(skuId int64) (*PublicResponse[LowestPriceResponse], error)
+	LowestPrice(skuId int) (*PublicResponse[LowestPriceResponse], error)
 }
 
 type ConsignBidClientImpl struct {
@@ -49,7 +49,7 @@ const FastLowestPriceUrl = "/dop/api/v1/consign/bidding/lowest_price"
 
 type ConsignLowestPriceReq struct {
 	PublicParams
-	SkuId int64 `json:"sku_id" url:"sku_id"`
+	SkuId int `json:"sku_id" url:"sku_id"`
 }
 
 type LowestPriceResponse struct {
@@ -62,7 +62,7 @@ type LowestPriceItem struct {
 	BiddingType BiddingType `json:"bidding_type"`
 }
 
-func (a *ConsignBidClientImpl) LowestPrice(skuId int64) (*PublicResponse[LowestPriceResponse], error) {
+func (a *ConsignBidClientImpl) LowestPrice(skuId int) (*PublicResponse[LowestPriceResponse], error) {
 	if skuId == 0 {
 		return nil, Err_Params_None
 	}