diff --git a/src/main/java/com/aida/seller/module/listing/enums/ProductCategoryEnum.java b/src/main/java/com/aida/seller/module/listing/enums/ProductCategoryEnum.java
index 36750ee..27e86df 100644
--- a/src/main/java/com/aida/seller/module/listing/enums/ProductCategoryEnum.java
+++ b/src/main/java/com/aida/seller/module/listing/enums/ProductCategoryEnum.java
@@ -1,5 +1,6 @@
 package com.aida.seller.module.listing.enums;
 
+import com.fasterxml.jackson.annotation.JsonValue;
 import lombok.AllArgsConstructor;
 import lombok.Getter;
 
@@ -17,6 +18,7 @@ public enum ProductCategoryEnum {
     SKIRT("skirt", "半身裙"),
     ACCESSORIES("accessories", "配饰");
 
+    @JsonValue
     private final String code;
     private final String desc;
 
diff --git a/src/main/java/com/aida/seller/module/listing/service/ListingServiceImpl.java b/src/main/java/com/aida/seller/module/listing/service/ListingServiceImpl.java
index 4afcdd6..f1e99db 100644
--- a/src/main/java/com/aida/seller/module/listing/service/ListingServiceImpl.java
+++ b/src/main/java/com/aida/seller/module/listing/service/ListingServiceImpl.java
@@ -159,7 +159,7 @@ public class ListingServiceImpl extends ServiceImpl<ListingMapper, ListingEntity
         } else {
             queryWrapper.ne(ListingEntity::getStatus, ListingStatusEnum.DELETED.getCode());
         }
-        queryWrapper.orderByDesc(ListingEntity::getCreateTime);
+        queryWrapper.orderByDesc(ListingEntity::getUpdateTime);
         IPage<ListingEntity> page = this.page(pageParam, queryWrapper);
 
         Page<ListingPageVO> result = new Page<>(page.getCurrent(), page.getSize(), page.getTotal());