diff --git a/modules/libs/lib/facter/subnet_facts.rb b/modules/libs/lib/facter/subnet_facts.rb
index 8669fe1..532dba3 100644
--- a/modules/libs/lib/facter/subnet_facts.rb
+++ b/modules/libs/lib/facter/subnet_facts.rb
@@ -23,8 +23,8 @@ class SubnetAttributes
     '198.18.27.0/24' => { environment: 'prod', region: 'syd1', country: 'au', zone: 'common' }, # common node0011
     '198.18.28.0/24' => { environment: 'prod', region: 'syd1', country: 'au', zone: 'common' }, # common node0012
     '198.18.29.0/24' => { environment: 'prod', region: 'syd1', country: 'au', zone: 'common' }, # common node0013
-    '198.18.30.0/24' => { environment: 'prod', region: 'syd2', country: 'au', zone: 'dmz' },    # binarylane syd dmz vpc
-    '198.18.31.0/24' => { environment: 'prod', region: 'mel1', country: 'au', zone: 'dmz' }     # binarylane mel dmz vpc
+    '172.18.30.0/24' => { environment: 'prod', region: 'syd2', country: 'au', zone: 'dmz' },    # binarylane syd dmz vpc
+    '172.18.31.0/24' => { environment: 'prod', region: 'mel1', country: 'au', zone: 'dmz' }     # binarylane mel dmz vpc
   }.freeze
 
   # Default attributes if no subnet matches, also defined as a constant