diff --git a/pyproject.toml b/pyproject.toml
index eec6a8d..c534471 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -8,7 +8,7 @@ readme = "README.md"
 repository = "https://github.com/samuelint/langchain-openai-api-bridge"
 
 [tool.poetry.dependencies]
-python = ">=3.9,<4.0"
+python = ">=3.10,<4.0"
 openai = "^1.35.1"
 
 langchain = { version = "^0.2.6", optional = true }