diff --git a/python-md2workflow.changes b/python-md2workflow.changes
index ea4d165..3a8e347 100644
--- a/python-md2workflow.changes
+++ b/python-md2workflow.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Thu Jun  5 09:33:24 UTC 2025 - Markéta Machová <mmachova@suse.com>
+
+- Convert to libalternatives
+
 -------------------------------------------------------------------
 Mon Jun  2 08:48:06 UTC 2025 - Markéta Machová <mmachova@suse.com>
 
diff --git a/python-md2workflow.spec b/python-md2workflow.spec
index 05dd717..bc8fa74 100644
--- a/python-md2workflow.spec
+++ b/python-md2workflow.spec
@@ -16,6 +16,7 @@
 #
 
 
+%bcond_without libalternatives
 Name:           python-md2workflow
 Version:        1.4.18
 Release:        0
@@ -35,12 +36,12 @@ BuildRequires:  %{python_module pytest}
 BuildRequires:  %{python_module python-redmine}
 BuildRequires:  %{python_module setuptools}
 BuildRequires:  %{python_module wheel}
+BuildRequires:  alts
 BuildRequires:  fdupes
 BuildRequires:  python-rpm-macros
+Requires:       alts
 Requires:       python-icalendar
 Requires:       python-md2workflow-common
-Requires(post): alts
-Requires(postun): alts
 Provides:       md2workfow = %{version}
 BuildArch:      noarch
 %python_subpackages
@@ -95,11 +96,11 @@ cp %{_sourcedir}/LICENSE LICENSE
 %python_expand %fdupes %{buildroot}%{$python_sitelib}
 ln -s -f %{_datadir}/md2workflow/config %{buildroot}%{_sysconfdir}/md2workflow
 
-%post
-%python_install_alternative md2workflow
+%pre
+# removing old update-alternatives entries
+%python_libalternatives_reset_alternative md2workflow
 
-%postun
-%python_uninstall_alternative md2workflow
+# post and postun alternatives calls are not needed anymore
 
 %files %{python_files}
 %license LICENSE