diff --git a/pyproject.toml b/pyproject.toml
index 7e9e8426204..baebe35a57a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -74,7 +74,7 @@ include-package-data = true
 include = ["homeassistant*"]
 
 [tool.black]
-target-version = ["py39", "py310"]
+target-version = ["py310"]
 extend-exclude = "/generated/"
 
 [tool.isort]