fix bug

@@ -55,7 +55,7 @@ corporate_args = {
     'taxRegistrationCode': fields.Str(required=True, validate=validate.Length(max=256)),
     "incorporationDate": CustomDate(required=True),
     "businessLicenseDueDate": CustomDate(required=True),
-    "capitalRegAmount": fields.Decimal(required=True),  # TODO 2位小数限制
+    "capitalRegAmount": CustomDecimal(required=True),  # TODO 2位小数限制
 }
 
 individual_args = {
@@ -68,7 +68,7 @@ individual_args = {
     "idExpiryDate": CustomDate(required=True),
     "dateOfBirth": CustomDate(required=True),
     'companyName': fields.Str(required=False, validate=validate.Length(max=256)),
-    "registeredCapital": fields.Decimal(required=False),
+    "registeredCapital": CustomDecimal(required=False),
     'selfEmployedSubType': fields.Str(required=False, validate=validate.OneOf(consts.SUB_TYPE)),
 }