diff --git a/pyproject.toml b/pyproject.toml
index 931e61b..df70096 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,4 +3,4 @@
 requires = ["setuptools", "wheel"]
 
 [tool.black]
-target_version = ['py39']
+target_version = ['py310']