diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..f6b05ae
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,40 @@
+[build-system]
+requires = ["setuptools >= 61.0"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "fs-uae-wrapper"
+authors = [{name = "Roman Dobosz", email = "gryf73@gmail.com"}]
+license = {text = "BSD"}
+description = "Automate archives support and state saves for fs-uae"
+readme = "README.rst"
+requires-python = ">=3.8"
+keywords = ["uae", "fs-uae", "amiga", "emulator", "wrapper"]
+version = "0.9.0"
+classifiers = [
+    "Development Status :: 5 - Production/Stable",
+    "Environment :: Console",
+    "Intended Audience :: End Users/Desktop",
+    "License :: OSI Approved :: BSD License",
+    "Operating System :: OS Independent",
+    "Programming Language :: Python :: 3",
+    "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",
+    "Topic :: System :: Emulators",
+    "Topic :: Games/Entertainment"
+]
+
+[project.urls]
+Homepage = "https://github.com/gryf/fs-uae-wrapper"
+
+[project.scripts]
+fs-uae-wrapper = "fs_uae_wrapper.wrapper:run"
+
+[tool.setuptools]
+py-modules = ["fs_uae_wrapper"]
+
+[tool.distutils.bdist_wheel]
+universal = true
diff --git a/setup.cfg b/setup.cfg
deleted file mode 100644
index faa1faa..0000000
--- a/setup.cfg
+++ /dev/null
@@ -1,37 +0,0 @@
-[metadata]
-name = fs-uae-wrapper
-summary = Automate archives and state for fs-uae
-description = Automate archives and state for fs-uae
-long_description = file: README.rst
-author = Roman Dobosz
-author_email = gryf73@gmail.com
-url = https://github.com/gryf/fs-uae-wrapper
-license = BSD
-keywords = uae, fs-uae, amiga, emulator, wrapper
-version = 0.8.3
-classifier =
-    Development Status :: 5 - Production/Stable
-    Environment :: Console
-    Intended Audience :: End Users/Desktop
-    License :: OSI Approved :: BSD License
-    Operating System :: OS Independent
-    Programming Language :: Python :: 3
-    Programming Language :: Python :: 3.8
-    Programming Language :: Python :: 3.9
-    Programming Language :: Python :: 3.10
-    Topic :: System :: Emulators
-    Topic :: Games/Entertainment
-
-[install]
-record = install.log
-
-[options.entry_points]
-console_scripts =
-    fs-uae-wrapper = fs_uae_wrapper.wrapper:run
-
-[files]
-packages =
-    fs_uae_wrapper
-
-[bdist_wheel]
-universal = 1
diff --git a/setup.py b/setup.py
deleted file mode 100755
index c52b075..0000000
--- a/setup.py
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/usr/bin/env python
-import setuptools
-
-
-setuptools.setup()
diff --git a/tests/test_utils.py b/tests/test_utils.py
index 4537047..fb74b34 100644
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -237,8 +237,8 @@ class TestCmdOptions(TestCase):
     @mock.patch('os.path.exists')
     @mock.patch('os.getenv')
     @mock.patch('os.path.expandvars')
-    @mock.patch('distutils.spawn.find_executable')
-    def test_interpolate_variables(self, find_exe, expandv, getenv, os_exists):
+    @mock.patch('shutil.which')
+    def test_interpolate_variables(self, which, expandv, getenv, os_exists):
 
         os_exists.return_value = True
         itrpl = utils.interpolate_variables
@@ -252,7 +252,7 @@ class TestCmdOptions(TestCase):
                          '/home/user')
 
         string = '$APP/$EXE'
-        find_exe.return_value = '/usr/bin/fs-uae'
+        which.return_value = '/usr/bin/fs-uae'
         self.assertEqual(itrpl(string, '/home/user/Config.fs-uae'),
                          '/usr/bin/fs-uae//usr/bin/fs-uae')
 
diff --git a/tests/test_wrapper.py b/tests/test_wrapper.py
index 10cd0cc..4ec2795 100644
--- a/tests/test_wrapper.py
+++ b/tests/test_wrapper.py
@@ -47,10 +47,7 @@ class TestWrapper(TestCase):
             fobj.write('\n')
 
         wrapper.run()
-        mock_plain_run.called_once_with('Config.fs-uae',
-                                        ['--fullscreen',
-                                         '--fade_out_duration=0'],
-                                        [])
+        mock_plain_run.assert_called_once()
 
         # This will obviously fail for nonexistent module
         sys.argv.append('--wrapper=dummy_wrapper')