diff --git a/it-syndik.at.zone b/it-syndik.at.zone
index 3db4bbf..0acec48 100644
--- a/it-syndik.at.zone
+++ b/it-syndik.at.zone
@@ -2,7 +2,7 @@
 
 @	SOA	( ns0.it-syndik.at.
 		  hostmaster.it-syndikat.org.
-		  1618291833 ; serial
+		  1618540582 ; serial
 		  3h ; refresh
 		  1h ; retry
 		  4w ; expire