diff --git a/rag-worker/zhixi-worker.service b/rag-worker/zhixi-worker.service
index 7343e26..19dcba8 100644
--- a/rag-worker/zhixi-worker.service
+++ b/rag-worker/zhixi-worker.service
@@ -4,7 +4,7 @@ After=network.target
 
 [Service]
 Type=simple
-User=root
+User=ubuntu
 WorkingDirectory=/opt/zhixi/backend/rag-worker
 Environment="PYTHONUNBUFFERED=1"
 EnvironmentFile=/opt/zhixi/backend/rag-worker/.env