diff --git a/pyproject.toml b/pyproject.toml
index 964f56c..5d17aab 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -10,7 +10,7 @@ target-version = ["py39"]
 [tool.flake8]
 ignore = ["E203", "E251", "E701", "N805", "W503", "DAR101", "DAR201", "DAR301", "DAR401"]
 max-line-length = 88
-min_python_version = "3.10.0"
+min_python_version = "3.9.0"
 
 [tool.isort]
 include_trailing_comma = true