diff --git a/ubuntu/roles/firewall-ruleset-deploy/files/catsith.asininetech.net.rules.v4 b/ubuntu/roles/firewall-ruleset-deploy/files/catsith.asininetech.net.rules.v4
index 6531910..1a0b7d3 100644
--- a/ubuntu/roles/firewall-ruleset-deploy/files/catsith.asininetech.net.rules.v4
+++ b/ubuntu/roles/firewall-ruleset-deploy/files/catsith.asininetech.net.rules.v4
@@ -21,5 +21,5 @@
 -A OUTPUT -p tcp -m tcp --dport 587 -j ACCEPT
 -A OUTPUT -p tcp -m tcp --dport 5665 -j ACCEPT
 -A OUTPUT -p tcp -m tcp --dport 25 -j ACCEPT
--A OUTPUT -p udp -m udp --dports 67,68 -j ACCEPT
+-A OUTPUT -p udp -m multiport --dports 67,68 -j ACCEPT
 COMMIT
diff --git a/ubuntu/roles/firewall-ruleset-deploy/files/deirdre.asininetech.net.rules.v4 b/ubuntu/roles/firewall-ruleset-deploy/files/deirdre.asininetech.net.rules.v4
index c38c941..eb0517d 100644
--- a/ubuntu/roles/firewall-ruleset-deploy/files/deirdre.asininetech.net.rules.v4
+++ b/ubuntu/roles/firewall-ruleset-deploy/files/deirdre.asininetech.net.rules.v4
@@ -24,6 +24,6 @@
 -A OUTPUT -p tcp -m tcp --dport 587 -j ACCEPT
 -A OUTPUT -p tcp -m tcp --dport 5665 -j ACCEPT
 -A OUTPUT -p tcp -m tcp --dport 25 -j ACCEPT
--A OUTPUT -p udp -m udp --dports 67,68 -j ACCEPT
+-A OUTPUT -p udp -m multiport --dports 67,68 -j ACCEPT
 COMMIT
 # Completed on Thu Aug 22 02:25:12 2019