diff --git a/pyproject.toml b/pyproject.toml
index c103f61..3fb6f91 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -71,5 +71,10 @@ flake8 = [
 requires = ["setuptools"]
 build-backend = "setuptools.build_meta"
 
+[tool.flake8]
+max-line-length = 160
+# Black compatibility, E203 whitespace before ':':
+extend-ignore = ["E203"]
+
 [tool.setuptools.package-data]
 sqlite_utils = ["py.typed"]
diff --git a/setup.cfg b/setup.cfg
deleted file mode 100644
index 6b9c885..0000000
--- a/setup.cfg
+++ /dev/null
@@ -1,4 +0,0 @@
-[flake8]
-max-line-length = 160
-# Black compatibility, E203 whitespace before ':':
-extend-ignore = E203
\ No newline at end of file
diff --git a/tests/test_extracts.py b/tests/test_extracts.py
index cca16ba..f24e448 100644
--- a/tests/test_extracts.py
+++ b/tests/test_extracts.py
@@ -25,7 +25,7 @@ def test_extracts(fresh_db, kwargs, expected_table, use_table_factory):
             {"id": 2, "species_id": "Oak"},
             {"id": 3, "species_id": "Palm"},
         ],
-        **insert_kwargs
+        **insert_kwargs,
     )
     # Should now have two tables: Trees and Species
     assert {expected_table, "Trees"} == set(fresh_db.table_names())