diff --git a/python-tox.spec b/python-tox.spec
index 52c35ad..9447fe9 100644
--- a/python-tox.spec
+++ b/python-tox.spec
@@ -86,7 +86,7 @@ PATH=%{buildroot}%{_bindir}:$PATH PYTHONPATH=%{buildroot}%{python_sitelib}/ py.t
 
 %post
 update-alternatives \
-    --install %{_bindir}/tox tox %{_bindir}/tox-%{py_ver} 30 \
+    --install %{_bindir}/tox tox %{_bindir}/tox-%{py_ver} 20 \
     --slave %{_bindir}/tox-quickstart tox-quickstart %{_bindir}/tox-quickstart-%{py_ver}
 
 %postun