diff --git a/pyproject.toml b/pyproject.toml
index 27de1cd..94b76ee 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -12,7 +12,7 @@ writemore = "writemore.cli:run"
 [tool.poetry.dependencies]
 python = "^3.10"
 click = "8.1.3"
-langchain = "0.0.138"
+langchain = "0.0.142"
 openai = "0.27.4"
 tiktoken = "^0.3.3"
 pydantic = "^1.10.7"