diff --git a/scripts/openstack-cleanup/requirements.txt b/scripts/openstack-cleanup/requirements.txt
index 81c57a64f..426c1b09b 100644
--- a/scripts/openstack-cleanup/requirements.txt
+++ b/scripts/openstack-cleanup/requirements.txt
@@ -1 +1,2 @@
 openstacksdk>=0.43.0
+six