diff --git a/notebooks/openai-cookbook/apps/enterprise-knowledge-retrieval/requirements.txt b/notebooks/openai-cookbook/apps/enterprise-knowledge-retrieval/requirements.txt
index 6b6bc3c..1f52b29 100644
--- a/notebooks/openai-cookbook/apps/enterprise-knowledge-retrieval/requirements.txt
+++ b/notebooks/openai-cookbook/apps/enterprise-knowledge-retrieval/requirements.txt
@@ -1,4 +1,4 @@
-langchain==0.1.0
+langchain==0.1.11
 numpy==1.24.2
 openai==0.27.4
 pandas==2.0.0