diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..c3a9866
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,63 @@
+[build-system]
+requires = ["setuptools>=61.2"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "django_csp"
+version = "3.8rc"
+description = "Django Content Security Policy support."
+readme = "README.rst"
+authors = [{name = "James Socol", email = "me@jamessocol.com"}]
+maintainers = [{name = "Mozilla MEAO team", email = "meao-backend@mozilla.com"}]
+license = {text = "BSD"}
+classifiers = [
+    "Development Status :: 5 - Production/Stable",
+    "Environment :: Web Environment",
+    "Environment :: Web Environment :: Mozilla",
+    "Programming Language :: Python",
+    "License :: OSI Approved :: BSD License",
+    "Operating System :: OS Independent",
+    "Intended Audience :: Developers",
+    "Topic :: Software Development :: Libraries :: Python Modules",
+    "Programming Language :: Python",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.8",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: Implementation :: PyPy",
+    "Programming Language :: Python :: Implementation :: CPython",
+    "Framework :: Django :: 3.2",
+    "Framework :: Django :: 4.2",
+    "Framework :: Django :: 5.0",
+]
+dependencies = ["Django>=3.2"]
+
+[project.urls]
+Homepage = "http://github.com/mozilla/django-csp"
+Documentation = "http://django-csp.readthedocs.org/"
+Changelog = "https://github.com/mozilla/django-csp/blob/main/CHANGES"
+"Bug Tracker" = "https://github.com/mozilla/django-csp/issues"
+"Source Code" = "https://github.com/mozilla/django-csp"
+
+[project.optional-dependencies]
+tests = [
+    "pytest",
+    "pytest-cov",
+    "pytest-django",
+    "pytest-ruff",
+    "jinja2>=2.9.6",
+]
+jinja2 = ["jinja2>=2.9.6"]
+
+[tool.setuptools]
+zip-safe = false
+include-package-data = true
+
+[tool.setuptools.packages]
+find = {namespaces = false}
+
+[tool.pytest.ini_options]
+addopts = "-vs --tb=short --ruff --ruff-format"
+DJANGO_SETTINGS_MODULE = "csp.tests.settings"
diff --git a/setup.cfg b/setup.cfg
deleted file mode 100644
index b1d05a6..0000000
--- a/setup.cfg
+++ /dev/null
@@ -1,59 +0,0 @@
-[metadata]
-name = django_csp
-version = 3.8rc
-description = Django Content Security Policy support.
-long_description= file: README.rst
-author = James Socol
-author_email = me@jamessocol.com
-maintainer = Mozilla MEAO team
-maintainer_email = meao-backend@mozilla.com
-url = http://github.com/mozilla/django-csp
-license = BSD
-classifiers =
-    Development Status :: 5 - Production/Stable
-    Environment :: Web Environment
-    Environment :: Web Environment :: Mozilla
-    Programming Language :: Python
-    License :: OSI Approved :: BSD License
-    Operating System :: OS Independent
-    Intended Audience :: Developers
-    Topic :: Software Development :: Libraries :: Python Modules
-    Programming Language :: Python
-    Programming Language :: Python :: 3
-    Programming Language :: Python :: 3.8
-    Programming Language :: Python :: 3.9
-    Programming Language :: Python :: 3.10
-    Programming Language :: Python :: 3.11
-    Programming Language :: Python :: 3.12
-    Programming Language :: Python :: Implementation :: PyPy
-    Programming Language :: Python :: Implementation :: CPython
-    Framework :: Django :: 3.2
-    Framework :: Django :: 4.2
-    Framework :: Django :: 5.0
-project_urls =
-    Documentation = http://django-csp.readthedocs.org/
-    Changelog = https://github.com/mozilla/django-csp/blob/main/CHANGES
-    Bug Tracker = https://github.com/mozilla/django-csp/issues
-    Source Code = https://github.com/mozilla/django-csp
-
-
-[options]
-packages = find:
-install_requires = Django>=3.2
-zip_safe=False
-include_package_data = True
-
-[options.extras_require]
-tests =
-    pytest
-    pytest-cov
-    pytest-django
-    pytest-ruff
-    jinja2>=2.9.6
-jinja2 =
-    jinja2>=2.9.6
-
-[tool:pytest]
-addopts = -vs --tb=short --ruff --ruff-format
-
-DJANGO_SETTINGS_MODULE = csp.tests.settings
diff --git a/tox.ini b/tox.ini
index 4f82062..2390c44 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,4 +1,5 @@
 [tox]
+isolated_build = True
 envlist =
     {3.10,3.11,3.12,pypy310}-main
     {3.10,3.11,3.12,pypy310}-5.0.x