diff --git a/Framework/YLErp.Core/DBModels/BondPayment.cs b/Framework/YLErp.Core/DBModels/BondPayment.cs
index 94056c19..aae29465 100644
--- a/Framework/YLErp.Core/DBModels/BondPayment.cs
+++ b/Framework/YLErp.Core/DBModels/BondPayment.cs
@@ -98,12 +98,12 @@ namespace YLErp.DBModels
         /// 发布时间
         /// </summary>
         [Column("insert_time")]
-        public DateTime create_time { get; set; }
+        public DateTime? create_time { get; set; }
         /// <summary>
         /// 更新时间
         /// </summary>
         [DisplayName("更新时间")]
         [Column("update_time")]
-        public DateTime update_time { get; set; }
+        public DateTime? update_time { get; set; }
     }
 }