diff --git a/requirements.txt b/requirements.txt
index ea3e451..12e9ae7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ einops==0.7.0
 fastapi==0.108.0
 google_search_results==2.4.2
 huggingface-hub==0.20.1
-langchain==0.0.352
+langchain==0.1.5
 nltk==3.8.1
 openai==1.6.1
 Pillow==10.1.0