diff --git a/src/WMS.Web.Domain/Entitys/InstockTask.cs b/src/WMS.Web.Domain/Entitys/InstockTask.cs
index a3da9baa..06409c78 100644
--- a/src/WMS.Web.Domain/Entitys/InstockTask.cs
+++ b/src/WMS.Web.Domain/Entitys/InstockTask.cs
@@ -66,7 +66,7 @@ namespace WMS.Web.Domain.Entitys
         /// <summary>
         /// 在wms最新数据修改时间
         /// </summary>
-        public DateTime WmsUpdateTime { get; set; } = DateTime.Now;
+        public DateTime? WmsUpdateTime { get; set; } = DateTime.Now;
 
         /// <summary>
         /// 作废人
diff --git a/src/WMS.Web.Domain/Entitys/OutStockTask.cs b/src/WMS.Web.Domain/Entitys/OutStockTask.cs
index 5d63d14f..71ac6713 100644
--- a/src/WMS.Web.Domain/Entitys/OutStockTask.cs
+++ b/src/WMS.Web.Domain/Entitys/OutStockTask.cs
@@ -87,7 +87,7 @@ namespace WMS.Web.Domain.Entitys
         /// 在wms最新数据修改时间
         /// </summary>
         [Column("WmsUpdateTime")]
-        public DateTime WmsUpdateTime { get; set; } = DateTime.Now;
+        public DateTime? WmsUpdateTime { get; set; } = DateTime.Now;
         /// <summary>
         /// 明细
         /// </summary>