diff --git a/Learn.Archives.Core/Model/Dto/UserCenterServiceDto.cs b/Learn.Archives.Core/Model/Dto/UserCenterServiceDto.cs
index 2aa8bd9..a9c3b7a 100644
--- a/Learn.Archives.Core/Model/Dto/UserCenterServiceDto.cs
+++ b/Learn.Archives.Core/Model/Dto/UserCenterServiceDto.cs
@@ -320,8 +320,7 @@ namespace Learn.Archives.Core.Model.Dto
         /// <summary>
         /// 减免金额
         /// </summary>
-        [SugarColumn(DecimalDigits = 2)]
-        public decimal AmountRelief { get; set; }
+        public decimal? AmountRelief { get; set; }
 
         /// <summary>
         /// 学生状态