diff --git a/python-odfpy.changes b/python-odfpy.changes
index 6b85c40..8f2aba5 100644
--- a/python-odfpy.changes
+++ b/python-odfpy.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Mon Jun  9 12:43:41 UTC 2025 - Markéta Machová <mmachova@suse.com>
+
+- Convert to libalternatives
+
 -------------------------------------------------------------------
 Mon Jun  2 14:49:42 UTC 2025 - Markéta Machová <mmachova@suse.com>
 
diff --git a/python-odfpy.spec b/python-odfpy.spec
index 1a81881..29c6cbb 100644
--- a/python-odfpy.spec
+++ b/python-odfpy.spec
@@ -19,6 +19,7 @@
 #
 %define modname odfpy
 %define binaries csv2ods mailodf odf2mht odf2xhtml odf2xml odfimgimport odflint odfmeta odfoutline odfuserfield xml2odf
+%bcond_without libalternatives
 %{?sle15_python_module_pythons}
 Name:           python-%{modname}
 Version:        1.4.2
@@ -33,11 +34,11 @@ BuildRequires:  %{python_module pip}
 BuildRequires:  %{python_module pytest}
 BuildRequires:  %{python_module setuptools}
 BuildRequires:  %{python_module wheel}
+BuildRequires:  alts
 BuildRequires:  fdupes
 BuildRequires:  python-rpm-macros
+Requires:       alts
 Requires:       python-defusedxml
-Requires(post): alts
-Requires(postun): alts
 BuildArch:      noarch
 %python_subpackages
 
@@ -86,14 +87,9 @@ done
 %check
 %pytest
 
-%post
+%pre
 for b in %{binaries}; do
-  %python_install_alternative $b $b.1
-done
-
-%postun
-for b in %{binaries}; do
-  %python_uninstall_alternative $b
+  %python_libalternatives_reset_alternative $b
 done
 
 %files %{python_files}