diff --git a/python-natsort.changes b/python-natsort.changes
index 18af995..45e816d 100644
--- a/python-natsort.changes
+++ b/python-natsort.changes
@@ -1,3 +1,18 @@
+-------------------------------------------------------------------
+Thu Aug 21 09:59:03 UTC 2025 - Markéta Machová <mmachova@suse.com>
+
+- Convert to libalternatives on SLE-16-based and newer systems only
+
+-------------------------------------------------------------------
+Mon Jun  9 14:18:09 UTC 2025 - Markéta Machová <mmachova@suse.com>
+
+- Convert to libalternatives
+
+-------------------------------------------------------------------
+Mon Jun  2 14:35:21 UTC 2025 - Markéta Machová <mmachova@suse.com>
+
+- Convert to pip-based build
+
 -------------------------------------------------------------------
 Mon Jul 10 16:16:15 UTC 2023 - ecsos <ecsos@opensuse.org>
 
diff --git a/python-natsort.spec b/python-natsort.spec
index aefcf3a..684fffb 100644
--- a/python-natsort.spec
+++ b/python-natsort.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package python-natsort
 #
-# Copyright (c) 2023 SUSE LLC
+# Copyright (c) 2025 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -16,6 +16,11 @@
 #
 
 
+%if 0%{?suse_version} > 1500
+%bcond_without libalternatives
+%else
+%bcond_with libalternatives
+%endif
 %{?sle15_python_module_pythons}
 Name:           python-natsort
 Version:        8.4.0
@@ -26,19 +31,25 @@ URL:            https://github.com/SethMMorton/natsort
 Source:         https://files.pythonhosted.org/packages/source/n/natsort/natsort-%{version}.tar.gz
 BuildRequires:  %{python_module fastnumbers >= 5.0.1}
 BuildRequires:  %{python_module hypothesis}
+BuildRequires:  %{python_module pip}
 BuildRequires:  %{python_module pytest >= 4.3}
 BuildRequires:  %{python_module pytest-mock}
 BuildRequires:  %{python_module setuptools}
+BuildRequires:  %{python_module wheel}
 BuildRequires:  fdupes
 BuildRequires:  help2man
 BuildRequires:  python-rpm-macros
 Requires:       python-setuptools
-Requires(post): update-alternatives
-Requires(postun):update-alternatives
 Recommends:     python-PyICU >= 1.0.0
 Recommends:     python-fastnumbers >= 5.0.1
 BuildArch:      noarch
-%{?sle15_python_module_pythons}
+%if %{with libalternatives}
+BuildRequires:  alts
+Requires:       alts
+%else
+Requires(post): update-alternatives
+Requires(postun): update-alternatives
+%endif
 %python_subpackages
 
 %description
@@ -51,10 +62,10 @@ sorting based on meaning and not computer code point).
 %autopatch -p1
 
 %build
-%python_build
+%pyproject_wheel
 
 %install
-%python_install
+%pyproject_install
 
 export PYTHONPATH=%{buildroot}%{python_sitelib}
 help2man -o natsort.1 -N %{buildroot}%{_bindir}/natsort
@@ -70,11 +81,14 @@ export LANG=en_US.UTF8
 %pytest --hypothesis-profile=slow-tests
 
 %post
-%python_install_alternative natsort natsort.1
+%python_install_alternative natsort
 
 %postun
 %python_uninstall_alternative natsort
 
+%pre
+%python_libalternatives_reset_alternative natsort
+
 %files %{python_files}
 %license LICENSE
 %doc README.rst CHANGELOG.md