diff --git a/app/rag_chain.py b/app/rag_chain.py
index 466c329..7adc8c7 100644
--- a/app/rag_chain.py
+++ b/app/rag_chain.py
@@ -3,7 +3,7 @@ import os
 import weaviate
 from weaviate import Client
 from weaviate import WeaviateClient
-from weaviate.connect import ConnectionParams, AuthCredentials
+from weaviate.connect import ConnectionParams
 from weaviate.auth import AuthApiKey
 from weaviate.classes.init import Auth
 from langchain.vectorstores import Weaviate
@@ -108,7 +108,7 @@ def build_rag_chain():
         print("연결 실패 3. 서버 상태를 확인하세요.")
 
 
-    auth_key = AuthCredentials.api_key("01js3q6y7twaxccm5dbh3se9bt")  # 없으면 None
+    # auth_key = AuthCredentials.api_key("01js3q6y7twaxccm5dbh3se9bt")  # 없으면 None
 
     # 커넥션 설정 (http, grpc 둘 다)
     connection_params = ConnectionParams.from_params(
@@ -118,7 +118,7 @@ def build_rag_chain():
         grpc_host="183.111.96.67",
         grpc_port=32619,  # 예시 포트, 실제 grpc 포트 넣어야 함
         grpc_secure=False,
-        auth_credentials=auth_key  # 없으면 생략 가능
+        auth_credentials=auth  # 없으면 생략 가능
     )
 
     client4 = WeaviateClient(connection_params=connection_params)