diff --git a/pyproject.toml b/pyproject.toml
index 3a37752..c8e7db3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -68,16 +68,6 @@ pydata-sphinx-theme = "*"
 restructuredtext-lint = "*"
 sphinx = "*"
 
-[tool.black]
-line-length = 79
-exclude = '''
-/(
-    \.git
-  | build
-  | dist
-)/
-'''
-
 [tool.codespell]
 skip = 'BIBLIOGRAPHY.bib,CONTRIBUTORS.rst'