diff --git a/internal/models.py b/internal/models.py
index 59732c1..efd037c 100644
--- a/internal/models.py
+++ b/internal/models.py
@@ -132,7 +132,7 @@ class Comment(BaseModel):
     parent_id:Annotated[int,Field(
         title="父级评论id",
         description="父级评论允许为空"
-    )]
+    )]=None
     blog_id:Annotated[int,Field(
         title="博客id",
         description="博客id允许为空"
@@ -140,7 +140,7 @@ class Comment(BaseModel):
     commentname:Annotated[str,Field(
         title="评论用户",
         description="评论用户不允许为空"
-    )]=None
+    )]
     email:Annotated[str,Field(
         title="评论用户邮箱",
         description="评论用户邮箱不允许为空"