diff --git a/pyproject.toml b/pyproject.toml
index bda0e7e187..8219cf81ee 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -58,7 +58,7 @@ ipython = "^9.0.0"
 isodate = "^0.7.2"
 jedi = "^0.19.0"
 langchain = "^0.3.11"
-langchain-experimental = "^0.3.4"
+langchain-experimental = "^0.4.0"
 langchain-openai = "^0.3.2"
 litellm = "1.79.3"
 llama-index = "^0.13.0"