diff --git a/pyproject.toml b/pyproject.toml
index 9e80ba904814a816018027f92bbae2b049047887..f15cb8d4e856feccd922de6a690fa486d3d2dc35 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -139,15 +139,6 @@ convention = "numpy"
 "tests/*.py" = ["D", "E501"]
 "doc/conf.py" = ["D"]
 
-[tool.isort]
-profile = "black"
-line_length = 80
-order_by_type = true
-lines_between_types = 1
-
-[tool.black]
-line-length = 80
-
 [tool.pytest.ini_options]
 addopts = ["--cov=clapper", "--cov-report=term-missing", "--import-mode=append"]
 junit_logging = "all"