diff --git a/zones/db.tilde.chat b/zones/db.tilde.chat
index b8df93b..bbec099 100644
--- a/zones/db.tilde.chat
+++ b/zones/db.tilde.chat
@@ -1,7 +1,7 @@
 $ORIGIN .
 $TTL 3600	; 1 hour
 tilde.chat		IN SOA	ns1.tildeverse.net. root.tilde.chat. (
-				2022101200 ; serial
+				2022110901 ; serial
 				86400      ; refresh (1 day)
 				7200       ; retry (2 hours)
 				3600000    ; expire (5 weeks 6 days 16 hours)
@@ -41,7 +41,8 @@ eu			A	104.238.186.103
 			AAAA	2a01:4f8:252:3e22::52
 			AAAA	2a01:4f8:1c1c:45b3::1
 hub			CNAME	tilde.chat.
-institute		A	159.69.146.152
+institute		A	144.76.163.202
+			AAAA	2a01:4f8:200:400c::420
 irc			A	104.238.186.103
 			A	159.69.146.152
 			A	129.151.107.153