diff --git a/lightrag/api/lightrag_server.py b/lightrag/api/lightrag_server.py
index cec3c089..705a4673 100644
--- a/lightrag/api/lightrag_server.py
+++ b/lightrag/api/lightrag_server.py
@@ -9,7 +9,7 @@ from lightrag.llm import openai_complete_if_cache, openai_embedding
 from lightrag.llm import azure_openai_complete_if_cache, azure_openai_embedding
 
 from lightrag.utils import EmbeddingFunc
-from typing import Optional, List, Union
+from typing import Optional, List, Union, Any
 from enum import Enum
 from pathlib import Path
 import shutil