diff --git a/CHANGES b/CHANGES
index 23203ca2e3..4e574ef162 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,5 @@
+4633.	[maint]		Updated AAAA (2001:500:200::b) for B.ROOT-SERVERS.NET.
+
 4632.	[security]	The BIND installer on Windows used an unquoted
 			service path, which can enable privilege escalation.
 			(CVE-2017-3141) [RT #45229]
diff --git a/lib/dns/rootns.c b/lib/dns/rootns.c
index f1eb53367a..2d70742a1b 100644
--- a/lib/dns/rootns.c
+++ b/lib/dns/rootns.c
@@ -53,7 +53,7 @@ static char root_ns[] =
 "A.ROOT-SERVERS.NET.     3600000 IN      A       198.41.0.4\n"
 "A.ROOT-SERVERS.NET.     3600000 IN      AAAA    2001:503:BA3E::2:30\n"
 "B.ROOT-SERVERS.NET.     3600000 IN      A       192.228.79.201\n"
-"B.ROOT-SERVERS.NET.     3600000 IN      AAAA    2001:500:84::b\n"
+"B.ROOT-SERVERS.NET.     3600000 IN      AAAA    2001:500:200::b\n"
 "C.ROOT-SERVERS.NET.     3600000 IN      A       192.33.4.12\n"
 "C.ROOT-SERVERS.NET.     3600000 IN      AAAA    2001:500:2::c\n"
 "D.ROOT-SERVERS.NET.     3600000 IN      A       199.7.91.13\n"