diff --git a/conf/reference-files/etc/group b/conf/reference-files/etc/group
index a7dc063..704090c 100644
--- a/conf/reference-files/etc/group
+++ b/conf/reference-files/etc/group
@@ -60,7 +60,6 @@ ssl-cert:x:118:
 ntp:x:119:
 Debian-exim:x:120:
 tftp:x:121:
-debian-inadyn:x:122:
 tcpdump:x:123:
 rdma:x:124:
 gluster:x:125:
diff --git a/conf/reference-files/etc/passwd b/conf/reference-files/etc/passwd
index 3d458ff..884265d 100644
--- a/conf/reference-files/etc/passwd
+++ b/conf/reference-files/etc/passwd
@@ -33,7 +33,6 @@ Debian-snmp:x:113:117::/var/lib/snmp:/bin/false
 ntp:x:114:119::/nonexistent:/usr/sbin/nologin
 Debian-exim:x:115:120::/var/spool/exim4:/usr/sbin/nologin
 tftp:x:116:121:tftp daemon,,,:/srv/tftp:/usr/sbin/nologin
-debian-inadyn:x:117:122:inadyn dyndns client,,,:/run/inadyn:/bin/false
 tcpdump:x:118:123::/nonexistent:/usr/sbin/nologin
 gluster:x:119:125::/var/lib/glusterd:/usr/sbin/nologin
 proftpd:x:120:65534::/run/proftpd:/usr/sbin/nologin