diff --git a/README.md b/README.md
index d3f8bc1..d97e408 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,8 @@
 
 ## Desription
 
-Search embedding in [Faiss](https://github.com/facebookresearch/faiss), **please make sure you have inserted data to Faiss before search**.
+
+Only for local test. If you want to use a vector database in a production environment, you can use Milvus(https://github.com/milvus-io/milvus).
 
 <br />
 
@@ -23,7 +24,7 @@ Search embedding in [Faiss](https://github.com/facebookresearch/faiss), **please
 *Write a same pipeline with explicit inputs/outputs name specifications:*
 
 ```python
-from towhee.dc2 import pipe, ops
+from towhee import pipe, ops
 
 p = pipe.input('vec')  \
     .flat_map('vec', 'rows', ops.ann_search.faiss('./data_dir', 5))  \