diff --git a/global/overlay/etc/puppet/cosmos-rules.yaml b/global/overlay/etc/puppet/cosmos-rules.yaml
index cffd808..d957097 100644
--- a/global/overlay/etc/puppet/cosmos-rules.yaml
+++ b/global/overlay/etc/puppet/cosmos-rules.yaml
@@ -1,3 +1,7 @@
 # Note that the matching is done with re.match()
-'^ns[0-9]?.mnt.se$':
-   nameserver:
+'^internal-sto4-test-k8sc-[0-9].rut.sunet.se$':
+  sunet::microk8s::node: 
+    channel: 1.28/stable
+'^internal-sto4-test-k8sw-[0-9].rut.sunet.se$':
+  sunet::microk8s::node: 
+    channel: 1.28/stable