diff --git a/app/model/LlmDemoMdel.py b/app/model/LlmDemoMdel.py
index 2916828..df73c70 100644
--- a/app/model/LlmDemoMdel.py
+++ b/app/model/LlmDemoMdel.py
@@ -25,17 +25,17 @@ class LlmDemoModel(SQLModel, table=True):
 
   __tablename__ = "llm_demo"
 
-  id: str = Field(default=None, primary_key=True, description="唯一标识，编号")
-  created_at: FormattedDatetime = Field(default_factory=current_datetime, description="创建时间")
-  updated_at: FormattedDatetime = Field(default_factory=current_datetime, description="更新时间")
+  id: str | None = Field(default=None, primary_key=True, description="唯一标识，编号")
+  created_at: FormattedDatetime | None = Field(default_factory=current_datetime, description="创建时间")
+  updated_at: FormattedDatetime | None = Field(default_factory=current_datetime, description="更新时间")
   created_by: str | None = Field(default=None, description="创建人id")
   updated_by: str | None = Field(default=None, description="更新人id")
 
-  full_name: str = Field(default=None, description="用户名称")
-  datetime_start: FormattedDatetime = Field(default=None, description="开通会员时间")
-  datetime_end: FormattedDatetime = Field(default=None, description="会员截止到期时间")
-  birthday: FormattedDate = Field(default=None, description="生日")
-  amount: FormattedDecimal = Field(default=Decimal(0), description="金额")
+  full_name: str | None = Field(default=None, description="用户名称")
+  datetime_start: FormattedDatetime | None = Field(default=None, description="开通会员时间")
+  datetime_end: FormattedDatetime | None = Field(default=None, description="会员截止到期时间")
+  birthday: FormattedDate | None = Field(default=None, description="生日")
+  amount: FormattedDecimal | None = Field(default=Decimal(0), description="金额")
 
 
 def add_llm_demo_route(app: FastAPI):