diff --git a/python-labels.changes b/python-labels.changes
index 959cb88..1060bb9 100644
--- a/python-labels.changes
+++ b/python-labels.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Thu Jun  5 09:25:03 UTC 2025 - Markéta Machová <mmachova@suse.com>
+
+- Convert to libalternatives
+
 -------------------------------------------------------------------
 Fri May 30 09:38:00 UTC 2025 - Markéta Machová <mmachova@suse.com>
 
diff --git a/python-labels.spec b/python-labels.spec
index e3d05f3..9ee3149 100644
--- a/python-labels.spec
+++ b/python-labels.spec
@@ -16,6 +16,7 @@
 #
 
 
+%bcond_without libalternatives
 Name:           python-labels
 Version:        20.1.0
 Release:        0
@@ -29,12 +30,12 @@ BuildRequires:  %{python_module setuptools}
 BuildRequires:  %{python_module wheel}
 BuildRequires:  fdupes
 BuildRequires:  python-rpm-macros
+Requires:       alts
 Requires:       python-attrs
 Requires:       python-click
 Requires:       python-pytoml
 Requires:       python-requests
-Requires(post): alts
-Requires(postun): alts
+BuildRequires:  alts
 BuildArch:      noarch
 # SECTION test requirements
 BuildRequires:  %{python_module attrs}
@@ -65,11 +66,9 @@ CLI app for managing GitHub labels.
 export LANG=en_US.UTF-8
 %pytest
 
-%post
-%python_install_alternative labels
-
-%postun
-%python_uninstall_alternative labels
+%pre
+# removing old update-alternatives entries
+%python_libalternatives_reset_alternative labels
 
 %files %{python_files}
 %doc README.md