diff --git a/app/rag_chain.py b/app/rag_chain.py
index 060843f..a2a7a2e 100644
--- a/app/rag_chain.py
+++ b/app/rag_chain.py
@@ -74,6 +74,7 @@ def build_rag_chain():
     # auth_cre= AuthCredentials.api_key("01js3q6y7twaxccm5dbh3se9bt")
 
     # 커넥션 설정 (http, grpc 둘 다)
+    auth_client_secret=Auth.api_key("01js3q6y7twaxccm5dbh3se9bt")
     connection_params = ConnectionParams.from_params(
         http_host="183.111.96.67",
         http_port=32668,
@@ -83,7 +84,7 @@ def build_rag_chain():
         grpc_secure=False
     )
 
-    client4 = WeaviateClient(connection_params=connection_params, auth=auth)
+    client4 = WeaviateClient(connection_params=connection_params, auth_client_secret=auth_client_secret)
 
     if client4.is_ready():
         print("Weaviate 4 연결 성공!")