diff --git a/astpath/cli.py b/astpath/__main__.py
similarity index 100%
rename from astpath/cli.py
rename to astpath/__main__.py
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..66ddafd
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,5 @@
+[build-system]
+requires = ["setuptools>=44", "wheel", "setuptools_scm[toml]>=3.4.3"]
+build-backend = "setuptools.build_meta"
+
+[tool.setuptools_scm]
diff --git a/setup.cfg b/setup.cfg
index beda73b..24c1a31 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,4 +1,28 @@
 [metadata]
-provides-extra = xpath
-requires-dist = 
-    lxml>=3.3.5; extra == 'xpath'
+name = astpath
+author = H. Chase Stevens
+author_email = chase@chasestevens.com
+license = MIT
+description = A query language for Python abstract syntax trees
+long_description = file: README.md
+long_description_content_type = text/markdown
+keywords = xpath, xml, ast, asts, syntax, query
+url = https://github.com/hchasestevens/astpath
+classifiers =
+    Development Status :: 3 - Alpha
+    Programming Language :: Python
+    Programming Language :: Python :: 2
+    Programming Language :: Python :: 2.7
+    Intended Audience :: Developers
+    Operating System :: OS Independent
+    License :: OSI Approved :: MIT License
+    Natural Language :: English
+
+[options]
+packages = astpath
+
+[options.entry_points]
+console_scripts = astpath = astpath.__main__:main
+
+[options.extras_require]
+xpath = lxml>=3.3.5
diff --git a/setup.py b/setup.py
deleted file mode 100644
index 69e0b71..0000000
--- a/setup.py
+++ /dev/null
@@ -1,33 +0,0 @@
-"""Setup for astpath, adds astpath console_script."""
-
-from setuptools import setup
-
-setup(
-    name='astpath',
-    packages=['astpath'],
-    version='0.9.1',
-    description='A query language for Python abstract syntax trees',
-    license='MIT',
-    author='H. Chase Stevens',
-    author_email='chase@chasestevens.com',
-    url='https://github.com/hchasestevens/astpath',
-    extras_require={
-        'xpath': ['lxml>=3.3.5', ]
-    },
-    entry_points={
-        'console_scripts': [
-            'astpath = astpath.cli:main',
-        ]
-    },
-    keywords='xpath xml ast asts syntax query',
-    classifiers=[
-        'Development Status :: 3 - Alpha',
-        'Programming Language :: Python',
-        'Programming Language :: Python :: 2',
-        'Programming Language :: Python :: 2.7',
-        'Intended Audience :: Developers',
-        'Operating System :: OS Independent',
-        'License :: OSI Approved :: MIT License',
-        'Natural Language :: English',
-    ]
-)