diff --git a/src/SJZY.Track.Domain/Dtos/Common/KeywordsInputVO.cs b/src/SJZY.Track.Domain/Dtos/Common/KeywordsInputVO.cs
index 9cf11c60..2e58c378 100644
--- a/src/SJZY.Track.Domain/Dtos/Common/KeywordsInputVO.cs
+++ b/src/SJZY.Track.Domain/Dtos/Common/KeywordsInputVO.cs
@@ -10,7 +10,7 @@ public class KeywordsInputVO : PageInfoInput
     /// <summary>
     /// 关键字
     /// </summary>
-    public string Keywords { get; set; }
+    public string? Keywords { get; set; }
 
     /// <summary>
     /// 选中项