diff --git a/python-webassets.changes b/python-webassets.changes
index 94ef558..3fdec26 100644
--- a/python-webassets.changes
+++ b/python-webassets.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Mon May 18 07:25:35 UTC 2020 - Petr Gajdos <pgajdos@suse.com>
+
+- %python3_only -> %python_alternative
+
 -------------------------------------------------------------------
 Thu Feb  6 14:17:00 UTC 2020 - Marketa Calabkova <mcalabkova@suse.com>
 
diff --git a/python-webassets.spec b/python-webassets.spec
index c7a729a..38018b0 100644
--- a/python-webassets.spec
+++ b/python-webassets.spec
@@ -36,6 +36,8 @@ BuildRequires:  %{python_module setuptools}
 BuildRequires:  fdupes
 BuildRequires:  python-rpm-macros
 Requires:       python-setuptools
+Requires(post): update-alternatives
+Requires(postun): update-alternatives
 BuildArch:      noarch
 %python_subpackages
 
@@ -55,16 +57,23 @@ sed -i -e 's:e.message:e.args[0]:g' tests/test_filters.py
 
 %install
 %python_install
+%python_clone -a %{buildroot}%{_bindir}/webassets
 %python_expand %fdupes %{buildroot}%{$python_sitelib}
 
 %check
 export LANG="en_US.UTF8"
 %pytest
 
+%post
+%python_install_alternative webassets
+
+%postun
+%python_uninstall_alternative webassets
+
 %files %{python_files}
 %license LICENSE
 %doc AUTHORS CHANGES README.rst
-%python3_only %{_bindir}/webassets
+%python_alternative %{_bindir}/webassets
 %{python_sitelib}/*
 
 %changelog