diff --git a/pyproject.toml b/pyproject.toml
index 5d4ee0e..0cdd36b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -47,7 +47,7 @@ dependencies = [
 
     # llm utils
     "hydra-core==1.3.2",
-    "langchain==0.2.17",
+    "langchain==0.3.30",
     "langchain-community==0.2.19",
     "langchain-openai==0.1.25",
     "openai==1.55.0",