diff --git a/requirements.txt b/requirements.txt
index 9e7fe92..1c68537 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,7 +15,7 @@ frozenlist==1.4.0
 GithubCacher==0.0.1
 greenlet==2.0.2
 idna==3.4
-langchain==0.0.253
+langchain==0.0.309
 langsmith==0.0.19
 marshmallow==3.20.1
 multidict==6.0.4