diff --git a/pyproject.toml b/pyproject.toml
index c1e4f3950..d82ef5901 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -21,7 +21,7 @@ fastapi = ">=0.104.1"
 python-multipart = ">=0.0.6"
 markdown = ">=3.5.1"
 langchain = "^0.2"
-langgraph = ">=0.0.29,<0.1"
+langgraph = ">=0.0.29,<0.3"
 langchain_community = "^0.2"
 langchain-openai = "^0.1"
 tavily-python = ">=0.2.8"