diff --git a/docs/zh_CN/inference_deployment/paddle_serving_deploy.md b/docs/zh_CN/inference_deployment/paddle_serving_deploy.md
index 7e92e0f5cbe6252ee723b25fb161e8ca363ca41d..ca2c577d59597a9406ffd21cadbbbe74adcf8a20 100644
--- a/docs/zh_CN/inference_deployment/paddle_serving_deploy.md
+++ b/docs/zh_CN/inference_deployment/paddle_serving_deploy.md
@@ -35,6 +35,7 @@ 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