diff --git a/schemas/project/project_base.py b/schemas/project/project_base.py
index 343d6bd..3671993 100644
--- a/schemas/project/project_base.py
+++ b/schemas/project/project_base.py
@@ -70,7 +70,7 @@ class ProjectResponseBase(BaseResponseWithID):
     complete_investment: float = Field(0.0, description="完成投资", examples=[80000.0])
 
     # 其他信息
-    progress_type: ProgressType = Field(..., description="推进分类", examples=[ProgressType.A])
+    progress_type: ProgressType | None = Field(None, description="推进分类", examples=[ProgressType.A])
     key_constraints: KeyConstraints = Field(KeyConstraints.NONE, description="关键制约", examples=[KeyConstraints.NONE])
     key_constraints_remark: Optional[str] = Field("", description="关键制约备注", examples=["无"])
     status: Optional[str] = Field(None, description="项目状态")