diff --git a/pyproject.toml b/pyproject.toml
index 0b5687cc..0a50cc23 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -13,7 +13,7 @@ license = "Apache 2.0"
 readme = "README.md"
 
 [tool.poetry.dependencies]
-python = ">=3.7.16,<4"
+python = ">=3.7.9,<4"
 lsprotocol = "2023.0.0a2"
 typeguard = "^3.0.0"
 websockets = {version = "^11.0.3", optional = true}