diff --git a/pyproject.toml b/pyproject.toml
index 5290743c..5c62ca12 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.black]
 skip-string-normalization = true
-target-version = ['py38']
+target-version = ['py39']
 
 [tool.isort]
 profile = "black"