diff --git a/cacert.com b/cacert.com
index d690d22..c3dea3f 100644
--- a/cacert.com
+++ b/cacert.com
@@ -1,10 +1,10 @@
 ; DNS master zone file for cacert.com, under RCS control
-; @(#)(CAcert) $Id: cacert.com,v 1.20 2015/10/26 14:49:58 root Exp $
+; @(#)(CAcert) $Id: cacert.com,v 1.21 2016/07/16 14:42:49 root Exp $
 
 $TTL	12h	;	default TTL for zone data
 
 @	IN	SOA	ns1.cacert.com. hostmaster.cacert.com. (
-					2015102601	; Serial
+					2016071601	; Serial
 					4h		; refresh time
 					1h		; retry interval
 					2d		; expire time
diff --git a/cacert.com.log b/cacert.com.log
index c2651f9..1f302cd 100644
--- a/cacert.com.log
+++ b/cacert.com.log
@@ -1,16 +1,20 @@
 
 RCS file: /var/opendnssec/unsigned/RCS/cacert.com,v
 Working file: /var/opendnssec/unsigned/cacert.com
-head: 1.20
+head: 1.21
 branch:
 locks: strict
 access list:
 symbolic names:
 keyword substitution: kv
-total revisions: 20;	selected revisions: 20
+total revisions: 21;	selected revisions: 21
 description:
 cacert.com - zone file for cacert.com
 ----------------------------
+revision 1.21
+date: 2016/07/16 14:42:49;  author: root;  state: Exp;  lines: +2 -2
+Update serial number to force OpenDNSSEC 2.0.0-1 to use a higher serial number.
+----------------------------
 revision 1.20
 date: 2015/10/26 14:49:58;  author: root;  state: Exp;  lines: +3 -3
 Disable IPv6 address for ns3, because this host is currently lacking IPv6 connectivity.
diff --git a/cacert.community b/cacert.community
index f5376bb..a82679e 100644
--- a/cacert.community
+++ b/cacert.community
@@ -1,10 +1,10 @@
 ; DNS master zone file for cacert.community, under RCS control
-; @(#)(CAcert) $Id: cacert.community,v 1.1 2014/06/11 09:16:59 root Exp $
+; @(#)(CAcert) $Id: cacert.community,v 1.2 2016/07/16 14:42:49 root Exp $
 
 $TTL	12h	;	default TTL for zone data
 
 @	IN	SOA	ns1.cacert.community. hostmaster.cacert.community. (
-					2014061101	; Serial
+					2016071601	; Serial
 					4h		; refresh time
 					1h		; retry interval
 					2d		; expire time
diff --git a/cacert.community.log b/cacert.community.log
index 64d8a49..70920fb 100644
--- a/cacert.community.log
+++ b/cacert.community.log
@@ -1,16 +1,20 @@
 
 RCS file: /var/opendnssec/unsigned/RCS/cacert.community,v
 Working file: /var/opendnssec/unsigned/cacert.community
-head: 1.1
+head: 1.2
 branch:
 locks: strict
 access list:
 symbolic names:
 keyword substitution: kv
-total revisions: 1;	selected revisions: 1
+total revisions: 2;	selected revisions: 2
 description:
 cacert.community - zone file for cacert.community
 ----------------------------
+revision 1.2
+date: 2016/07/16 14:42:49;  author: root;  state: Exp;  lines: +2 -2
+Update serial number to force OpenDNSSEC 2.0.0-1 to use a higher serial number.
+----------------------------
 revision 1.1
 date: 2014/06/11 09:16:59;  author: root;  state: Exp;
 Initial revision
diff --git a/cacert.net b/cacert.net
index 3e05b80..fc943c1 100644
--- a/cacert.net
+++ b/cacert.net
@@ -1,10 +1,10 @@
 ; DNS master zone file for cacert.net, under RCS control
-; @(#)(CAcert) $Id: cacert.net,v 1.21 2015/10/26 14:49:58 root Exp $
+; @(#)(CAcert) $Id: cacert.net,v 1.22 2016/07/16 14:42:49 root Exp $
 
 $TTL	12h	;	default TTL for zone data
 
 @	IN	SOA	ns1.cacert.net. hostmaster.cacert.net. (
-					2015102601	; Serial
+					2016071601	; Serial
 					4h		; refresh time
 					1h		; retry interval
 					2d		; expire time
diff --git a/cacert.net.log b/cacert.net.log
index 47480fc..08c3ed8 100644
--- a/cacert.net.log
+++ b/cacert.net.log
@@ -1,16 +1,20 @@
 
 RCS file: /var/opendnssec/unsigned/RCS/cacert.net,v
 Working file: /var/opendnssec/unsigned/cacert.net
-head: 1.21
+head: 1.22
 branch:
 locks: strict
 access list:
 symbolic names:
 keyword substitution: kv
-total revisions: 21;	selected revisions: 21
+total revisions: 22;	selected revisions: 22
 description:
 cacert.net - DNS master zone file for cacert.net, under RCS control
 ----------------------------
+revision 1.22
+date: 2016/07/16 14:42:49;  author: root;  state: Exp;  lines: +2 -2
+Update serial number to force OpenDNSSEC 2.0.0-1 to use a higher serial number.
+----------------------------
 revision 1.21
 date: 2015/10/26 14:49:58;  author: root;  state: Exp;  lines: +3 -3
 Disable IPv6 address for ns3, because this host is currently lacking IPv6 connectivity.
diff --git a/cacert.org b/cacert.org
index 0e82cc8..5c7e5ea 100644
--- a/cacert.org
+++ b/cacert.org
@@ -1,10 +1,10 @@
 ; DNS master zone file for cacert.org, under RCS control
-; @(#)(CAcert) $Id: cacert.org,v 1.101 2016/07/02 13:13:50 root Exp $
+; @(#)(CAcert) $Id: cacert.org,v 1.102 2016/07/16 14:42:49 root Exp $
 
 $TTL	12h	;	default TTL for zone data
 
 @	IN	SOA	ns1.cacert.org. hostmaster.cacert.org. (
-					2016070201	; Serial
+					2016071601	; Serial
 					4h		; refresh time
 					1h		; retry interval
 					2d		; expire time
diff --git a/cacert.org.log b/cacert.org.log
index 7401903..f21c2f2 100644
--- a/cacert.org.log
+++ b/cacert.org.log
@@ -1,16 +1,20 @@
 
 RCS file: /var/opendnssec/unsigned/RCS/cacert.org,v
 Working file: /var/opendnssec/unsigned/cacert.org
-head: 1.101
+head: 1.102
 branch:
 locks: strict
 access list:
 symbolic names:
 keyword substitution: kv
-total revisions: 101;	selected revisions: 101
+total revisions: 102;	selected revisions: 102
 description:
 cacert.org - zone file for cacert.org
 ----------------------------
+revision 1.102
+date: 2016/07/16 14:42:49;  author: root;  state: Exp;  lines: +2 -2
+Update serial number to force OpenDNSSEC 2.0.0-1 to use a higher serial number.
+----------------------------
 revision 1.101
 date: 2016/07/02 13:13:50;  author: root;  state: Exp;  lines: +6 -2
 Add additional SSHFP records for git.cacert.org.