diff --git a/libs/chatchat-server/chatchat/server/knowledge_base/kb_doc_api.py b/libs/chatchat-server/chatchat/server/knowledge_base/kb_doc_api.py
index 3e40786d..e73627a1 100644
--- a/libs/chatchat-server/chatchat/server/knowledge_base/kb_doc_api.py
+++ b/libs/chatchat-server/chatchat/server/knowledge_base/kb_doc_api.py
@@ -28,7 +28,7 @@ def search_docs(
                                       description="知识库匹配相关度阈值，取值范围在0-1之间，"
                                                   "SCORE越小，相关度越高，"
                                                   "取到1相当于不筛选，建议设置在0.5左右",
-                                      ge=0, le=1),
+                                      ge=0.0, le=1.0),
         file_name: str = Body("", description="文件名称，支持 sql 通配符"),
         metadata: dict = Body({}, description="根据 metadata 进行过滤，仅支持一级键"),
 ) -> List[Dict]: