diff --git a/business/jxstore/financial/pay.go b/business/jxstore/financial/pay.go
index c6d63c905..80fb2343e 100644
--- a/business/jxstore/financial/pay.go
+++ b/business/jxstore/financial/pay.go
@@ -21,13 +21,13 @@ type PayHandler struct {
 }
 
 type WxPayParam struct {
-	Prepayid  string `json:"Prepayid"`
-	Noncestr  string `json:"Noncestr"`
-	Timestamp string `json:"Timestamp"`
-	Package   string `json:"Package"`
-	Partnerid string `json:"Partnerid"`
-	Appid     string `json:"Appid"`
-	Sign      string `json:"Sign"`
+	Prepayid  string `json:"prepayid"`
+	Noncestr  string `json:"noncestr"`
+	Timestamp string `json:"timestamp"`
+	Package   string `json:"package"`
+	Partnerid string `json:"partnerid"`
+	Appid     string `json:"appid"`
+	Sign      string `json:"sign"`
 }
 
 type PayHandlerInterface interface {