diff --git a/pyproject.toml b/pyproject.toml
index 0276cc10..cedd0fa5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,3 +1,36 @@
+[build-system]
+requires = [
+    "setuptools>=45",
+]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "JAX-GalSim"
+authors = [
+    {name = "GalSim Developers"},
+]
+description = "The modular galaxy image simulation toolkit, but in JAX"
+version = "0.0.1rc1"
+license = {file = "LICENSE"}
+readme = "README.md"
+dependencies = [
+    "numpy >=1.18.0",
+    "galsim >=2.3.0",
+    "jax",
+    "jaxlib",
+    "astropy >=2.0",
+    "tensorflow-probability >=0.21.0",
+]
+
+[project.optional-dependencies]
+dev = ["pytest", "pytest-codspeed"]
+
+[project.urls]
+home = "https://github.com/GalSim-developers/JAX-GalSim"
+
+[tool.setuptools.packages.find]
+include = ["jax_galsim*"]
+
 [tool.ruff.lint]
 select = ["E", "F", "I", "W"]
 ignore = ["C901", "E203", "E501"]
diff --git a/setup.py b/setup.py
deleted file mode 100644
index f35018ce..00000000
--- a/setup.py
+++ /dev/null
@@ -1,20 +0,0 @@
-from setuptools import find_packages, setup
-
-setup(
-    name="JAX-GalSim",
-    version="0.0.1rc1",
-    url="https://github.com/GalSim-developers/JAX-GalSim",
-    author="GalSim Developers",
-    description="The modular galaxy image simulation toolkit, but in JAX",
-    packages=find_packages(),
-    license="BSD License",
-    install_requires=[
-        "numpy >= 1.18.0",
-        "galsim >= 2.3.0",
-        "jax",
-        "jaxlib",
-        "astropy >= 2.0",
-        "tensorflow-probability >= 0.21.0",
-    ],
-    tests_require=["pytest", "pytest-codspeed"],
-)