diff --git a/pyproject.toml b/pyproject.toml
index 91dc09298..b4c0c232e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -55,29 +55,3 @@ license-files = ["LICENSE.md"]
 
 [tool.setuptools.packages.find]
 namespaces = false
-
-[tool.pytest.ini_options]
-addopts = "--tb=short --strict-markers -ra"
-testspath = "tests"
-filterwarnings = ["ignore:CoreAPI compatibility is deprecated*:rest_framework.RemovedInDRF317Warning"]
-
-[tool.isort]
-skip = [".tox"]
-atomic = true
-multi_line_output = 5
-extra_standard_library = ["types"]
-known_third_party = ["pytest", "_pytest", "django", "pytz", "uritemplate"]
-known_first_party = ["rest_framework", "tests"]
-
-[tool.coverage.run]
-# NOTE: source is ignored with pytest-cov (but uses the same).
-source = ["."]
-include = ["rest_framework/*", "tests/*"]
-branch = true
-
-[tool.coverage.report]
-include = ["rest_framework/*", "tests/*"]
-exclude_lines = [
-    "pragma: no cover",
-    "raise NotImplementedError",
-]
diff --git a/setup.cfg b/setup.cfg
index aebdf5362..874b27acd 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,3 +1,28 @@
+[tool:pytest]
+addopts=--tb=short --strict-markers -ra
+testspath = tests
+filterwarnings = ignore:CoreAPI compatibility is deprecated*:rest_framework.RemovedInDRF317Warning
+
 [flake8]
 ignore = E501,W503,W504
 banned-modules = json = use from rest_framework.utils import json!
+
+[isort]
+skip=.tox
+atomic=true
+multi_line_output=5
+extra_standard_library=types
+known_third_party=pytest,_pytest,django,pytz,uritemplate
+known_first_party=rest_framework,tests
+
+[coverage:run]
+# NOTE: source is ignored with pytest-cov (but uses the same).
+source = .
+include = rest_framework/*,tests/*
+branch = 1
+
+[coverage:report]
+include = rest_framework/*,tests/*
+exclude_lines =
+    pragma: no cover
+    raise NotImplementedError