diff --git a/Pipfile b/Pipfile
index 8370a1a..a8b709d 100644
--- a/Pipfile
+++ b/Pipfile
@@ -10,7 +10,7 @@ flask-cors = "==4.0.0"
 httpcore = "==1.0.2"
 httptools = "==0.6.1"
 httpx = "==0.25.2"
-langchain = "==0.0.352"
+langchain = "==0.3.28"
 langchain-experimental = "==0.0.47"
 psycopg2-binary = "==2.9.9"
 pydantic = "==2.4.2"