diff --git a/Expedience.Infrastructure/Models/DeepDungeonRecord.cs b/Expedience.Infrastructure/Models/DeepDungeonRecord.cs
index 9975f3b..9e1c9c2 100644
--- a/Expedience.Infrastructure/Models/DeepDungeonRecord.cs
+++ b/Expedience.Infrastructure/Models/DeepDungeonRecord.cs
@@ -5,8 +5,8 @@ namespace Expedience.Infrastructure.Models;
 public class DeepDungeonRecord
 {
     public int TerritoryId { get; set; }
-    public string DeepDungeon { get; set; }
-    public string Floor { get; set; }
+    public string DeepDungeon { get; set; } = null!;
+    public string Floor { get; set; } = null!;
     public int Level { get; set; }
     public int SortKey { get; set; }
     public TimeSpan? MinParty { get; set; }