diff --git a/demo/blog_writer/requirements.txt b/demo/blog_writer/requirements.txt
index 9fd943da..2a6b8557 100644
--- a/demo/blog_writer/requirements.txt
+++ b/demo/blog_writer/requirements.txt
@@ -1,6 +1,6 @@
 pdfminer.six
 sentence-transformers
-langchain==0.0.332
+langchain==1.3.15
 langchain-chroma>=0.2.5
 python-dotenv>=1.0.0
 openai>=0.28.0