diff --git a/docs/zh_CN/inference_deployment/paddle_serving_deploy.md b/docs/zh_CN/inference_deployment/paddle_serving_deploy.md
index 250c24e4757b93817f065e8a30831c8086ce9ccd..99c3e45b2a8f513a16e6d1b35426d8da326450f4 100644
--- a/docs/zh_CN/inference_deployment/paddle_serving_deploy.md
+++ b/docs/zh_CN/inference_deployment/paddle_serving_deploy.md
@@ -37,6 +37,7 @@ docker exec -it test bash
 ```shell
 pip3 install paddle-serving-client==0.7.0
 pip3 install paddle-serving-app==0.7.0
+pip3 install faiss-cpu==1.7.1post2
 
 #若为CPU部署环境:
 pip3 install paddle-serving-server==0.7.0 # CPU