diff --git a/python-google-auth-oauthlib.changes b/python-google-auth-oauthlib.changes
index b236cfa..2c1c3e6 100644
--- a/python-google-auth-oauthlib.changes
+++ b/python-google-auth-oauthlib.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Tue May 26 06:34:28 UTC 2020 - Petr Gajdos <pgajdos@suse.com>
+
+- %python3_only -> %python_alternative
+
 -------------------------------------------------------------------
 Mon Apr 20 11:55:01 UTC 2020 - Tomáš Chvátal <tchvatal@suse.com>
 
diff --git a/python-google-auth-oauthlib.spec b/python-google-auth-oauthlib.spec
index 3a1b9ba..506a99d 100644
--- a/python-google-auth-oauthlib.spec
+++ b/python-google-auth-oauthlib.spec
@@ -31,6 +31,8 @@ BuildRequires:  python-rpm-macros
 Requires:       python-google-auth
 Requires:       python-requests-oauthlib >= 0.7.0
 Requires:       python-six
+Requires(post): update-alternatives
+Requires(postun): update-alternatives
 Recommends:     python-click
 BuildArch:      noarch
 # SECTION test requirements
@@ -62,15 +64,22 @@ rm -rf tests/*.pyc
 
 %install
 %python_install
+%python_clone -a %{buildroot}%{_bindir}/google-oauthlib-tool
 %python_expand %fdupes %{buildroot}%{$python_sitelib}
 
 %check
 %pytest
 
+%post
+%python_install_alternative google-oauthlib-tool
+
+%postun
+%python_uninstall_alternative google-oauthlib-tool
+
 %files %{python_files}
 %doc README.rst
 %license LICENSE
-%python3_only %{_bindir}/google-oauthlib-tool
+%python_alternative %{_bindir}/google-oauthlib-tool
 %{python_sitelib}/*
 
 %changelog