diff --git a/requirements-dev.txt b/requirements-dev.txt
index 5c6d8330aa..9d5db77b72 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -4,7 +4,7 @@ Markdown==3.4.4
 requests==2.31.0
 tqdm==4.66.1
 tiktoken==0.4.0
-langchain==0.0.340
+langchain==0.2.6
 bs4==0.0.1
 urllib3==2.1.0
 pytest==7.4.0