diff --git a/scripts/system-setup.sh b/scripts/system-setup.sh
index 6488a37..c8c7a22 100755
--- a/scripts/system-setup.sh
+++ b/scripts/system-setup.sh
@@ -109,14 +109,14 @@ banner bottom "installed cron"
 banner top "configuring sshd"
 sudo tee /etc/ssh/sshd_config << 'EOF'
 Include /etc/ssh/sshd_config.d/*.conf
-Port 67
+Port 66
 PermitRootLogin no
 PasswordAuthentication no
 KbdInteractiveAuthentication no
 EOF
-sudo semanage port -a -t ssh_port_t -p tcp 67
+sudo semanage port -a -t ssh_port_t -p tcp 66
 sudo systemctl restart sshd
 banner bottom "configuring sshd"
 
 # finish
-echo -e "done! please log out and log back in with \e[1;5mssh -p 67 $(id -un)@$(curl -s https://checkip.amazonaws.com)\e[0m\n"
+echo -e "done! please log out and log back in with \e[1;5mssh -p 66 $(id -un)@$(curl -s https://checkip.amazonaws.com)\e[0m\n"