diff --git a/nixbld-etc-nixos/named/193thz.com b/nixbld-etc-nixos/named/193thz.com
index 16d970f8..9d280903 100644
--- a/nixbld-etc-nixos/named/193thz.com
+++ b/nixbld-etc-nixos/named/193thz.com
@@ -1,7 +1,7 @@
 $TTL 7200
 
 @						SOA	ns1.193thz.com. sb.m-labs.hk. (
-							2023090504
+							2023110901
 							7200
 							3600
 							86400
@@ -16,6 +16,7 @@ $TTL 7200
 						MX		10 mail.m-labs.hk.
 						TXT		"v=spf1 mx a:router.alt.m-labs.hk -all"
 						TXT		"google-site-verification=5eIjLyhM_siRg5Fc2Z3AMSbheH0JFOn5iR3TCEXakqU"
+						CAA		0 issue "letsencrypt.org; accounturi=https://acme-v02.api.letsencrypt.org/acme/acct/496268470"
 
 
 ns						A		94.190.212.123