-r RO-VIM-aws/requirements.in
-r RO-VIM-azure/requirements.in
-r RO-VIM-fos/requirements.in
--r RO-VIM-opennebula/requirements.in
-r RO-VIM-openstack/requirements.in
-r RO-VIM-openvim/requirements.in
-r RO-VIM-vmware/requirements.in
+portend<3.1.0
+pyyaml==5.4.1