diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..4184f90
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,56 @@
+[build-system]
+requires = ["setuptools", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "pidng"
+version = "4.0.9"
+description = "Python utility for creating Adobe DNG files from RAW image data."
+readme = { file = "README.md", content-type = "text/markdown" }
+license = "MIT"
+authors = [
+    {name = "Csaba Nagy"}
+]
+requires-python = ">=3.6"
+dependencies = [
+    "numpy",
+]
+classifiers = [
+    "Development Status :: 4 - Beta",
+    "Topic :: Multimedia :: Graphics :: Capture :: Digital Camera",
+    "Topic :: Multimedia :: Graphics :: Graphics Conversion",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3 :: Only",
+    "Programming Language :: Python :: 3.6",
+    "Programming Language :: Python :: 3.7",
+    "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",
+]
+
+[project.urls]
+Homepage = "https://github.com/schoolpost/PiDNG"
+
+[tool.setuptools.packages.find]
+where = ["src"]
+include = ["pidng*"]
+
+# Ensure non-Python files needed for building are included in distributions
+[tool.setuptools.package-data]
+"pidng" = [
+    "liblj92/*.h",
+]
+
+[[tool.setuptools.ext-modules]]
+name = "ljpegCompress"
+sources = [
+    "src/pidng/bitunpack.c",
+    "src/pidng/liblj92/lj92.c"
+]
+include-dirs = [
+    "src/pidng",
+]
+extra-compile-args = ["-std=gnu99"]
+extra-link-args = []
diff --git a/setup.py b/setup.py
deleted file mode 100644
index 49ee496..0000000
--- a/setup.py
+++ /dev/null
@@ -1,33 +0,0 @@
-# from distutils.core import setup, Extension
-from setuptools import setup, Extension, find_packages
-
-with open("README.md", "r", encoding="utf-8") as fh:
-    long_description = fh.read()
-
-ljpeg92 = Extension('ljpegCompress', sources=[
-                    "src/pidng/bitunpack.c", "src/pidng/liblj92/lj92.c"],  extra_compile_args=['-std=gnu99'], extra_link_args=[])
-
-setup(
-    name="pidng",
-    include_package_data=True,
-    version="4.0.9",
-    author="Csaba Nagy",
-    description="Python utility for creating Adobe DNG files from RAW image data.",
-    long_description=long_description,
-    long_description_content_type="text/markdown",
-    url="https://github.com/schoolpost/PiDNG",
-    install_requires=[
-        'numpy',
-    ],
-    classifiers=[
-        'Development Status :: 4 - Beta',
-        "Topic :: Multimedia :: Graphics :: Capture :: Digital Camera",
-        "Topic :: Multimedia :: Graphics :: Graphics Conversion",
-        "Programming Language :: Python :: 3.6",
-        "License :: OSI Approved :: MIT License",
-    ],
-    ext_modules=[ljpeg92],
-    package_dir={"": "src"},
-    packages=find_packages(where="src"),
-    python_requires='>=3.6',
-)
\ No newline at end of file