diff --git a/lib/nova_plugins/functions-libvirt b/lib/nova_plugins/functions-libvirt
index 47605af..326c8bf 100644
--- a/lib/nova_plugins/functions-libvirt
+++ b/lib/nova_plugins/functions-libvirt
@@ -67,6 +67,8 @@
         else
             install_package libvirt-clients libvirt-daemon-system libvirt-dev
         fi
+        # uninstall in case the libvirt version changed
+        pip_uninstall libvirt-python
         pip_install_gr libvirt-python
         #pip_install_gr <there-si-no-guestfs-in-pypi>
     elif is_fedora || is_suse; then
@@ -84,6 +86,7 @@
         fi
 
         install_package libvirt libvirt-devel
+        pip_uninstall libvirt-python
         pip_install_gr libvirt-python
     fi