diff --git a/pyproject.toml b/pyproject.toml
index 0e2011e1..f2ac856a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,3 +1,35 @@
+[build-system]
+requires = ["setuptools>=42", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "xcdat"
+version = "0.7.3"
+description = "Xarray Climate Data Analysis Tools"
+readme = "README.rst"
+requires-python = ">=3.9"
+license = { text = "Apache-2.0" }
+authors = [{ name = "xCDAT developers" }]
+classifiers = [
+  "Development Status :: 5 - Production/Stable",
+  "Intended Audience :: Developers",
+  "License :: OSI Approved :: Apache-2.0 License",
+  "Natural Language :: English",
+  "Programming Language :: Python :: 3",
+  "Programming Language :: Python :: 3.9",
+  "Programming Language :: Python :: 3.10",
+  "Programming Language :: Python :: 3.11",
+  "Programming Language :: Python :: 3.12",
+]
+keywords = ["xcdat"]
+dependencies = []
+
+[project.optional-dependencies]
+test = ["pytest>=3"]
+
+[tool.setuptools.packages.find]
+include = ["xcdat", "xcdat.*"]
+
 [tool.ruff]
 # Exclude a variety of commonly ignored directories.
 exclude = [
diff --git a/setup.py b/setup.py
deleted file mode 100755
index aba2d7c2..00000000
--- a/setup.py
+++ /dev/null
@@ -1,41 +0,0 @@
-#!/usr/bin/env python
-
-"""The setup script."""
-
-from setuptools import find_packages, setup
-
-with open("README.rst") as readme_file:
-    readme = readme_file.read()
-
-with open("HISTORY.rst") as history_file:
-    history = history_file.read()
-
-test_requires = ["pytest>=3"]
-
-setup(
-    author="xCDAT developers",
-    python_requires=">=3.9",
-    classifiers=[
-        "Development Status :: 5 - Production/Stable",
-        "Intended Audience :: Developers",
-        "License :: OSI Approved :: Apache-2.0 License",
-        "Natural Language :: English",
-        "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.9",
-        "Programming Language :: Python :: 3.10",
-        "Programming Language :: Python :: 3.11",
-        "Programming Language :: Python :: 3.12",
-    ],
-    description="Xarray Climate Data Analysis Tools",
-    license="Apache-2.0",
-    long_description=readme + "\n\n" + history,
-    include_package_data=True,
-    keywords="xcdat",
-    name="xcdat",
-    packages=find_packages(include=["xcdat", "xcdat.*"]),
-    test_suite="tests",
-    tests_require=test_requires,
-    url="https://github.com/xCDAT/xcdat",
-    version="0.7.3",
-    zip_safe=False,
-)