diff --git a/classes/cluster/virtual-mcp11-aio/infra/config.yml b/classes/cluster/virtual-mcp11-aio/infra/config.yml
index c59029b..9609005 100644
--- a/classes/cluster/virtual-mcp11-aio/infra/config.yml
+++ b/classes/cluster/virtual-mcp11-aio/infra/config.yml
@@ -3,6 +3,8 @@
 parameters:
   _param:
     linux_system_codename: xenial
+    apt_mk_version: testing
+    linux_system_purge_repos: false
   linux:
     system:
       name: cfg01