diff --git a/de/heat-templates/top.yaml b/de/heat-templates/top.yaml
index 2d3f64a..7051873 100644
--- a/de/heat-templates/top.yaml
+++ b/de/heat-templates/top.yaml
@@ -59,8 +59,8 @@
       network: { get_resource: network }
       cidr: 10.10.0.0/24
       dns_nameservers:
-        - 172.18.208.44
-        - 4.2.2.1
+        - 172.18.224.6
+        - 172.18.176.6
   router:
     type: OS::Neutron::Router
     properties: