diff --git a/charms/nova-k8s/requirements.txt b/charms/nova-k8s/requirements.txt
index 10b8e8ee..635d2a1e 100644
--- a/charms/nova-k8s/requirements.txt
+++ b/charms/nova-k8s/requirements.txt
@@ -1,6 +1,6 @@
 jinja2
 git+https://opendev.org/openstack/charm-ops-openstack#egg=ops_openstack
-git+https://github.com/openstack-charmers/advanced-sunbeam-openstack#egg=advanced_sunbeam_openstack
+git+https://github.com/openstack-charmers/advanced-sunbeam-openstack@v0.1#egg=advanced_sunbeam_openstack
 lightkube
 # These are only needeed if the charm relates to ceph
 git+https://github.com/openstack/charm-ops-interface-ceph-client#egg=interface_ceph_client
diff --git a/charms/nova-k8s/src/charm.py b/charms/nova-k8s/src/charm.py
index 43b1a345..49a9df15 100755
--- a/charms/nova-k8s/src/charm.py
+++ b/charms/nova-k8s/src/charm.py
@@ -209,11 +209,11 @@ class NovaOperatorCharm(sunbeam_charm.OSBaseOperatorAPICharm):
         super().configure_charm(event)
 
 
-class NovaWallabyOperatorCharm(NovaOperatorCharm):
+class NovaXenaOperatorCharm(NovaOperatorCharm):
 
-    openstack_release = 'wallaby'
+    openstack_release = 'xena'
 
 if __name__ == "__main__":
     # Note: use_juju_for_storage=True required per
     # https://github.com/canonical/operator/issues/506
-    main(NovaWallabyOperatorCharm, use_juju_for_storage=True)
+    main(NovaXenaOperatorCharm, use_juju_for_storage=True)
diff --git a/charms/nova-k8s/unit_tests/test_nova_charm.py b/charms/nova-k8s/unit_tests/test_nova_charm.py
index 9e4dbe2c..8b50e181 100644
--- a/charms/nova-k8s/unit_tests/test_nova_charm.py
+++ b/charms/nova-k8s/unit_tests/test_nova_charm.py
@@ -24,7 +24,7 @@ import charm
 import advanced_sunbeam_openstack.test_utils as test_utils
 
 
-class _NovaWallabyOperatorCharm(charm.NovaWallabyOperatorCharm):
+class _NovaXenaOperatorCharm(charm.NovaXenaOperatorCharm):
 
     def __init__(self, framework):
         self.seen_events = []
@@ -48,7 +48,7 @@ class TestNovaOperatorCharm(test_utils.CharmTestCase):
     def setUp(self, mock_patch):
         super().setUp(charm, self.PATCHES)
         self.harness = test_utils.get_harness(
-            _NovaWallabyOperatorCharm,
+            _NovaXenaOperatorCharm,
             container_calls=self.container_calls)
         self.addCleanup(self.harness.cleanup)
         self.harness.begin()