diff --git a/fix-assertions.patch b/fix-assertions.patch
new file mode 100644
index 0000000..f113151
--- /dev/null
+++ b/fix-assertions.patch
@@ -0,0 +1,37 @@
+Index: subst-0.4.0/test/test_parse_args_eval_replacement.py
+===================================================================
+--- subst-0.4.0.orig/test/test_parse_args_eval_replacement.py
++++ subst-0.4.0/test/test_parse_args_eval_replacement.py
+@@ -28,8 +28,8 @@ class TestParseArgsEvalReplacement(unitt
+         if IS_PY2:
+             self.assertRaisesRegexp(TypeError, r'takes exactly 1 argument', result)
+         else:
+-            self.assertRaisesRegexp(TypeError, r'missing 1 required positional argument', result)
+-        self.assertRaisesRegexp(NameError, r"'asd' is not defined", lambda: result('a'))
++            self.assertRaisesRegex(TypeError, r'missing 1 required positional argument', result)
++        self.assertRaisesRegex(NameError, r"'asd' is not defined", lambda: result('a'))
+ 
+     def test_invalid_code_syntax_error(self):
+         code = 'in = 3'
+@@ -40,7 +40,7 @@ class TestParseArgsEvalReplacement(unitt
+         if IS_PY2:
+             self.assertRaisesRegexp(TypeError, r'takes exactly 1 argument', result)
+         else:
+-            self.assertRaisesRegexp(TypeError, r'missing 1 required positional argument', result)
++            self.assertRaisesRegex(TypeError, r'missing 1 required positional argument', result)
+         self.assertRaises(SyntaxError, lambda: result('a'))
+ 
+     def test_function_simple_match(self):
+Index: subst-0.4.0/test/test_show_version.py
+===================================================================
+--- subst-0.4.0.orig/test/test_show_version.py
++++ subst-0.4.0/test/test_show_version.py
+@@ -25,7 +25,7 @@ class TestShowVersion(unittest.TestCase)
+         data = sys.stdout.getvalue()
+         sys.stdout = old_stdout
+ 
+-        self.assertRegexpMatches(data, ': version %s' % re.escape(subst.__version__))
++        self.assertRegex(data, ': version %s' % re.escape(subst.__version__))
+ 
+ if __name__ == '__main__':
+     unittest.main()
diff --git a/python-subst.changes b/python-subst.changes
index 9ef19e5..9536ce4 100644
--- a/python-subst.changes
+++ b/python-subst.changes
@@ -1,3 +1,11 @@
+-------------------------------------------------------------------
+Tue Feb 27 01:35:04 UTC 2024 - Steve Kowalik <steven.kowalik@suse.com>
+
+- Correct URL.
+- Switch to autosetup and pyproject macros.
+- No more greedy globs in %files.
+- Add patch fix-assertions.patch, fix regex assertion methods.
+
 -------------------------------------------------------------------
 Wed Jan 13 12:44:17 UTC 2021 - pgajdos@suse.com
 
diff --git a/python-subst.spec b/python-subst.spec
index 52ecd43..6a44b18 100644
--- a/python-subst.spec
+++ b/python-subst.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package python-subst
 #
-# Copyright (c) 2021 SUSE LLC
+# Copyright (c) 2024 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -16,18 +16,19 @@
 #
 
 
-%{?!python_module:%define python_module() python-%{**} python3-%{**}}
 Name:           python-subst
 Version:        0.4.0
 Release:        0
 Summary:        Utility to replace one string into another in given list of files
 License:        MIT
-Group:          Development/Languages/Python
-URL:            http://mysz.github.io/subst/
+URL:            https://github.com/msztolcman/subst
 Source:         https://files.pythonhosted.org/packages/source/s/subst/subst-%{version}.tar.gz
 Source1:        https://raw.githubusercontent.com/msztolcman/subst/master/LICENSE
+Patch0:         fix-assertions.patch
+BuildRequires:  %{python_module pip}
 BuildRequires:  %{python_module pytest}
 BuildRequires:  %{python_module setuptools}
+BuildRequires:  %{python_module wheel}
 BuildRequires:  fdupes
 BuildRequires:  python-rpm-macros
 Requires(post): update-alternatives
@@ -39,20 +40,17 @@ BuildArch:      noarch
 `subst` is simple utility to replace one string into another in given list of files.
 
 %prep
-%setup -q -n subst-%{version}
+%autosetup -p1 -n subst-%{version}
 cp %{SOURCE1} .
-
 sed -i '/argparse/d' setup.py
-
 sed -i '1{/^#!/d}' subst.py
-
 touch test/__init__.py
 
 %build
-%python_build
+%pyproject_wheel
 
 %install
-%python_install
+%pyproject_install
 %python_clone -a %{buildroot}%{_bindir}/subst
 %python_expand %fdupes %{buildroot}%{$python_sitelib}
 
@@ -70,6 +68,8 @@ export PYTHONPATH=${PWD}/test
 %license LICENSE
 %doc README.rst
 %python_alternative %{_bindir}/subst
-%{python_sitelib}/*
+%{python_sitelib}/subst.py
+%pycache_only %{python_sitelib}/__pycache__/subst.*.py*
+%{python_sitelib}/subst-%{version}.dist-info
 
 %changelog