diff --git a/python-numpy.changes b/python-numpy.changes
index 2734f8a..9132f16 100644
--- a/python-numpy.changes
+++ b/python-numpy.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Thu Sep 30 10:05:18 UTC 2021 - Stefan Schubert <schubi@suse.de>
+
+- Use libalternatives instead of update-alternatives.
+
 -------------------------------------------------------------------
 Mon Sep 20 16:51:56 UTC 2021 - Ben Greiner <code@bnavigator.de>
 
diff --git a/python-numpy.spec b/python-numpy.spec
index 566de86..f545a0b 100644
--- a/python-numpy.spec
+++ b/python-numpy.spec
@@ -1,5 +1,5 @@
 #
-# spec file
+# spec file for package python-numpy
 #
 # Copyright (c) 2021 SUSE LLC
 #
@@ -16,6 +16,13 @@
 #
 
 
+#
+%if 0%{?suse_version} > 1500
+%bcond_without libalternatives
+%else
+%bcond_with libalternatives
+%endif
+
 %global flavor @BUILD_FLAVOR@%{nil}
 %define ver 1.21.2
 %define _ver 1_21_2
@@ -86,7 +93,7 @@ BuildRequires:  %{python_module pytest >= 6.2.4}
 BuildRequires:  %{python_module pytest-xdist}
 BuildRequires:  %{python_module setuptools}
 BuildRequires:  %{python_module testsuite}
-BuildRequires:  python-rpm-macros
+BuildRequires:  python-rpm-macros >= 20210929
 BuildRequires:  unzip
 %if 0%{?suse_version}
 BuildRequires:  fdupes
@@ -116,9 +123,14 @@ BuildRequires:  libopenblas%{?hpc_ext}-%{compiler_family}%{?c_f_ver}-hpc-devel
 BuildRequires:  lua-lmod
 BuildRequires:  suse-hpc
 Requires:       libopenblas%{?hpc_ext}-%{compiler_family}%{?c_f_ver}-hpc
+%if %{with libalternatives}
+Requires:       alts
+BuildRequires:  alts
+%else
 Requires(post): update-alternatives
 Requires(postun):update-alternatives
 %endif
+%endif
 %python_subpackages
 
 %description
@@ -279,6 +291,10 @@ rm -Rf %{buildroot}%{$python_sitearch}/numpy/.pytest_cache
 popd
 %endif
 
+%pre
+# If libalternatives is used: Removing old update-alternatives entries.
+%python_libalternatives_reset_alternative f2py
+
 %if %{without hpc}
 %post
 %python_install_alternative f2py