diff --git a/python-isort.changes b/python-isort.changes
index c719935..9694aab 100644
--- a/python-isort.changes
+++ b/python-isort.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Mon May 25 10:59:30 UTC 2020 - Petr Gajdos <pgajdos@suse.com>
+
+- %python3_only -> %python_alternative
+
 -------------------------------------------------------------------
 Sat Mar 14 08:32:17 UTC 2020 - Tomáš Chvátal <tchvatal@suse.com>
 
diff --git a/python-isort.spec b/python-isort.spec
index 37cd3f1..0d9c42f 100644
--- a/python-isort.spec
+++ b/python-isort.spec
@@ -37,6 +37,8 @@ BuildRequires:  %{python_module setuptools}
 BuildRequires:  fdupes
 BuildRequires:  python-rpm-macros
 Requires:       python-setuptools
+Requires(post): update-alternatives
+Requires(postun): update-alternatives
 Recommends:     python-appdirs >= 1.4.0
 Recommends:     python-pip
 Recommends:     python-pipreqs
@@ -82,6 +84,7 @@ chmod -x LICENSE
 %install
 %if !%{with test}
 %python_install
+%python_clone -a %{buildroot}%{_bindir}/isort
 %python_expand %fdupes %{buildroot}%{$python_sitelib}
 %endif
 
@@ -92,9 +95,15 @@ chmod -x LICENSE
 %endif
 
 %if !%{with test}
+%post
+%python_install_alternative isort
+
+%postun
+%python_uninstall_alternative isort
+
 %files %{python_files}
 %{python_sitelib}/isort*
-%python3_only %{_bindir}/isort
+%python_alternative %{_bindir}/isort
 %license LICENSE
 %endif