diff --git a/supply/order.go b/supply/order.go
index 2120c5a..ad0fcc6 100644
--- a/supply/order.go
+++ b/supply/order.go
@@ -118,7 +118,7 @@ type RetailOrderSearch struct {
 
 type RetailOrderItem struct {
 	Id             uint            `json:"id"`
-	OrderSubSn     uint64          `json:"orderSubSn"`
+	OrderSubSn     string          `json:"orderSubSn"`
 	SourceName     string          `json:"sourceName"`
 	CustomerName   string          `json:"customerName"`
 	OrderStatus    uint            `json:"orderStatus"`