diff --git a/classes/cluster/virtual-mcp-ocata-dvr/openstack/init.yml b/classes/cluster/virtual-mcp-ocata-dvr/openstack/init.yml
index 564bad5..221dbc6 100644
--- a/classes/cluster/virtual-mcp-ocata-dvr/openstack/init.yml
+++ b/classes/cluster/virtual-mcp-ocata-dvr/openstack/init.yml
@@ -1,7 +1,7 @@
 parameters:
   _param:
     openstack_version: ocata
-    apt_mk_version: nightly
+    apt_mk_version: 2017.12
     mcp_repo_version: 1.1
     openstack_region: RegionOne
     admin_email: root@localhost