diff --git a/data/dns/blackcat.dn42 b/data/dns/blackcat.dn42
index 5044cb446..883dd63b2 100644
--- a/data/dns/blackcat.dn42
+++ b/data/dns/blackcat.dn42
@@ -2,8 +2,8 @@ domain:             blackcat.dn42
 admin-c:            ABLACKCATSTAIL-DN42
 tech-c:             ABLACKCATSTAIL-DN42
 mnt-by:             ABLACKCATSTAIL-MNT
-nserver:            ns1.blackcat.dn42 172.20.165.193
-nserver:            ns1.blackcat.dn42 fd0b:7449:62d2::1
-nserver:            ns2.blackcat.dn42 172.20.165.194
-nserver:            ns2.blackcat.dn42 fd0b:7449:62d2::2
+nserver:            ns1.blackcat.dn42 172.20.165.194
+nserver:            ns1.blackcat.dn42 fd0b:7449:62d2::2
+nserver:            ns2.blackcat.dn42 172.20.165.195
+nserver:            ns2.blackcat.dn42 fd0b:7449:62d2::3
 source:             DN42