diff --git a/pyproject.toml b/pyproject.toml
index 7b2f731..d678920 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -48,7 +48,7 @@ packages = [
 [tool.setuptools_scm]
 
 [tool.black]
-target-version = ['py38', 'py38', 'py39', 'py310', 'py311']
+target-version = ['py38', 'py39', 'py310', 'py311']
 
 [tool.isort]
 profile = "black"