diff --git a/py2bit.h b/py2bit.h
index b7f4a1b..bee30dc 100644
--- a/py2bit.h
+++ b/py2bit.h
@@ -1,7 +1,7 @@
 #include <Python.h>
 #include "2bit.h"
 
-#define pyTwoBitVersion "0.3.2"
+#define pyTwoBitVersion "0.3.3"
 
 typedef struct {
     PyObject_HEAD
diff --git a/pyproject.toml b/pyproject.toml
index ae5db1e..a6d4a8b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ["setuptools>=42", "setuptools-scm"]
+requires = ["setuptools>=74.1", "setuptools-scm"]
 build-backend = "setuptools.build_meta"
 
 [project]
@@ -30,6 +30,12 @@ classifiers = [
 download = "https://github.com/deeptools/py2bit"
 homepage = "https://github.com/deeptools/py2bit"
 
+[tool.setuptools]
+# Override setuptools autodiscovery algorithm
+# Only include package test data/source for wheel distribution
+include-package-data = true
+packages = ["py2bitTest"]
+
 # Enable version inference from scm
 [tool.setuptools_scm]
 
diff --git a/setup.py b/setup.py
old mode 100755
new mode 100644
index bc10a0a..7f91207
--- a/setup.py
+++ b/setup.py
@@ -1,9 +1,6 @@
-#!/usr/bin/env python
-from setuptools import setup, Extension, find_packages
-from distutils import sysconfig
-import subprocess
+from setuptools import setup, Extension
 import glob
-import sys
+import sysconfig
 
 srcs = [x for x in 
     glob.glob("lib2bit/*.c")]
@@ -16,27 +13,5 @@
                     library_dirs = additional_libs, 
                     include_dirs = ['lib2bit', sysconfig.get_config_var("INCLUDEPY")])
 
-setup(name = 'py2bit',
-       version = '0.3.3',
-       description = 'A package for accessing 2bit files using lib2bit',
-       author = "Devon P. Ryan",
-       author_email = "dpryan79@gmail.com",
-       url = "https://github.com/deeptools/py2bit",
-       license = "MIT",
-       download_url = "https://github.com/deeptools/py2bit",
-       keywords = ["bioinformatics", "2bit"],
-       classifier = ["Development Status :: 5 - Production/Stable",
-                     "Intended Audience :: Developers",
-                     "License :: OSI Approved",
-                     "Programming Language :: C",
-                     "Programming Language :: Python",
-                     "Programming Language :: Python :: 2",
-                     "Programming Language :: Python :: 2.7",
-                     "Programming Language :: Python :: 3",
-                     "Programming Language :: Python :: Implementation :: CPython",
-                     "Operating System :: POSIX",
-                     "Operating System :: Unix",
-                     "Operating System :: MacOS"],
-       packages = find_packages(),
-       include_package_data=True,
-       ext_modules = [module1])
+setup_args = dict(ext_modules=[module1])
+setup(**setup_args)