diff --git a/5gprod/requirements.txt b/5gprod/requirements.txt
index c272762..17a9b9e 100644
--- a/5gprod/requirements.txt
+++ b/5gprod/requirements.txt
@@ -2,7 +2,7 @@ pandas>=3.0.5
 numpy>=2.5.1
 scikit-learn>=1.9.0
 python-dotenv>=1.2.2
-langchain>=1.3.14
+langchain>=1.4.0
 langchain_openai>=1.4.1
 langchain_community>=0.4.2
 faiss-cpu>=1.15.0