diff --git a/jianshui-invoice/src/main/java/com/jianshui/invoice/service/impl/api/ElephantInvoiceApiV6ServiceImpl.java b/jianshui-invoice/src/main/java/com/jianshui/invoice/service/impl/api/ElephantInvoiceApiV6ServiceImpl.java
index 831ca37..ed72cb5 100644
--- a/jianshui-invoice/src/main/java/com/jianshui/invoice/service/impl/api/ElephantInvoiceApiV6ServiceImpl.java
+++ b/jianshui-invoice/src/main/java/com/jianshui/invoice/service/impl/api/ElephantInvoiceApiV6ServiceImpl.java
@@ -1811,7 +1811,7 @@ public class ElephantInvoiceApiV6ServiceImpl implements IInvoiceApiService {
                         String lowerCaseKey = key.toLowerCase();
                         lowerCaseJson.put(lowerCaseKey, value);
                     });
-                    return new HXResponse(code, "", json, true);
+                    return new HXResponse(code, "", lowerCaseJson, true);
                 } else {
                     return new HXResponse(ztdm, ztxx, "", true);
                 }