diff --git a/requirements.txt b/requirements.txt
index 5cb2272..feeca7c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,5 @@
 ./docs/gradio-3.32.2-py3-none-any.whl
+zh_langchain==0.1.6
 tiktoken>=0.3.3
 requests[socks]
 transformers
@@ -15,4 +16,4 @@ pymupdf
 openai
 numpy
 arxiv
-rich
+rich
\ No newline at end of file