diff --git a/setup.cfg b/.flake8
similarity index 100%
rename from setup.cfg
rename to .flake8
diff --git a/MANIFEST.in b/MANIFEST.in
deleted file mode 100644
index 801545b..0000000
--- a/MANIFEST.in
+++ /dev/null
@@ -1,13 +0,0 @@
-recursive-include mpl_sphinx_theme *.py
-recursive-include mpl_sphinx_theme *.html
-recursive-include mpl_sphinx_theme *.css
-recursive-include mpl_sphinx_theme *.svg
-recursive-include mpl_sphinx_theme *.png
-recursive-include mpl_sphinx_theme *.ico
-recursive-include mpl_sphinx_theme *.conf
-
-include setup.py
-include requirements.txt
-include README.rst
-include LICENSE.txt
-include MANIFEST.in
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..8db7985
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,51 @@
+[build-system]
+requires = ["setuptools>=61.0"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "mpl_sphinx_theme"
+dynamic = ["version"]
+description = "Matplotlib theme for Sphinx"
+readme = "README.rst"
+requires-python = ">=3"
+license = {file = "LICENSE.txt"}
+authors = [
+    {name = "Matplotlib Developers"},
+]
+classifiers = [
+    "Framework :: Sphinx :: Theme",
+    "Programming Language :: Python :: 3 :: Only",
+    "Topic :: Documentation",
+    "Topic :: Documentation :: Sphinx",
+]
+dependencies = [
+    "pydata-sphinx-theme>=0.13.1",
+    "matplotlib",
+]
+
+[project.urls]
+homepage = "https://matplotlib.org/mpl-sphinx-theme/"
+repository = "https://github.com/matplotlib/mpl-sphinx-theme"
+
+# http://www.sphinx-doc.org/en/stable/theming.html#distribute-your-theme-as-a-python-package
+[project.entry-points."sphinx.html_themes"]
+mpl_sphinx_theme = "mpl_sphinx_theme"
+
+[tool.setuptools]
+packages = ["mpl_sphinx_theme"]
+zip-safe = false
+
+[tool.setuptools.dynamic]
+version = {attr = "mpl_sphinx_theme.__version__"}
+
+[tool.setuptools.package-data]
+mpl_sphinx_theme = [
+    "theme.conf",
+    "*.html",
+    "static/css/*.css",
+    "static/images/*.svg",
+    "static/images/*.ico",
+    "static/js/*.js",
+    "static/font/*.*",
+    "components/*.html",
+]
diff --git a/requirements.txt b/requirements.txt
deleted file mode 100644
index a945df9..0000000
--- a/requirements.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-pydata-sphinx-theme>=0.13.1
-matplotlib
\ No newline at end of file
diff --git a/setup.py b/setup.py
deleted file mode 100644
index 7a2847a..0000000
--- a/setup.py
+++ /dev/null
@@ -1,36 +0,0 @@
-#!/usr/bin/env python
-
-from setuptools import setup
-import mpl_sphinx_theme
-
-setup(
-    name="mpl_sphinx_theme",
-    version=mpl_sphinx_theme.__version__,
-    url="https://github.com/matplotlib/mpl-sphinx-theme",
-    license="BSD",
-    author="Matplotlib Developers",
-    description="Matplotlib theme for Sphinx",
-    long_description=open("README.rst").read(),
-    zip_safe=False,
-    packages=["mpl_sphinx_theme"],
-    package_data={
-        "mpl_sphinx_theme": [
-            "theme.conf",
-            "*.html",
-            "static/css/*.css",
-            "static/images/*.svg",
-            "static/images/*.ico",
-            "static/js/*.js",
-            "static/font/*.*",
-            "components/*.html",
-        ]
-    },
-    include_package_data=True,
-    # http://www.sphinx-doc.org/en/stable/theming.html#distribute-your-theme-as-a-python-package
-    entry_points={
-        "sphinx.html_themes": [
-            "mpl_sphinx_theme = mpl_sphinx_theme",
-        ]
-    },
-    install_requires=open("requirements.txt").read().strip().split("\n"),
-)