diff --git a/zones/xaviera.systems.zone b/zones/xaviera.systems.zone
index e34499c..2007734 100644
--- a/zones/xaviera.systems.zone
+++ b/zones/xaviera.systems.zone
@@ -1,10 +1,10 @@
 $ORIGIN xaviera.systems.
 @			3600	IN SOA  ns3.xaviera.systems. admin.k7dxs.net. (
-				40	; serial
-				28800	; refresh (8 hours)
-				7200	; retry (2 hours)
-				2419200	; expire (4 weeks)
-				3600	; minimum (1 hour)
+				41	; serial
+				300	; refresh (unused)
+				300	; retry (unused)
+				300	; expire (unused)
+				300	; minimum (nxdomain ttl)
 			)
 ; Nameservers
 @			3600	IN	NS	ns1.xaviera.systems.