diff --git a/urbanops-module-garden/src/main/java/com/zteits/urbanops/module/garden/service/materialinventory/MaterialInventoryServiceImpl.java b/urbanops-module-garden/src/main/java/com/zteits/urbanops/module/garden/service/materialinventory/MaterialInventoryServiceImpl.java
index 685b34e..4f3a0c3 100644
--- a/urbanops-module-garden/src/main/java/com/zteits/urbanops/module/garden/service/materialinventory/MaterialInventoryServiceImpl.java
+++ b/urbanops-module-garden/src/main/java/com/zteits/urbanops/module/garden/service/materialinventory/MaterialInventoryServiceImpl.java
@@ -142,9 +142,11 @@ public class MaterialInventoryServiceImpl implements MaterialInventoryService {
         if (outNum == null) {
             throw exception0(BAD_REQUEST.getCode(),"更新库存失败：outNum为空！");
         }
-        materialInventory.setOutTotalNum(materialInventory.getOutTotalNum() + outNum);
-        materialInventory.setCurrentNum(materialInventory.getCurrentNum() - outNum);
-        return materialInventoryMapper.updateById(materialInventory);
+        MaterialInventoryDO update = new MaterialInventoryDO();
+        update.setInventoryId(materialInventory.getInventoryId());
+        update.setOutTotalNum(materialInventory.getOutTotalNum() + outNum);
+        update.setCurrentNum(materialInventory.getCurrentNum() - outNum);
+        return materialInventoryMapper.updateById(update);
     }
 
     @Override