diff --git a/debian-setup.sh b/debian-setup.sh
index de6385a..9e1e274 100644
--- a/debian-setup.sh
+++ b/debian-setup.sh
@@ -90,7 +90,8 @@ systemctl restart ssh
 
 # install ntpdate
 echo "[INFO] Configuring time sync service"
-apt install -y ntp ntpdate ntpstat
+# from debian 12, ntp is replaced by ntpsec
+apt install -y ntpsec ntpdate ntpstat
 
 systemctl stop ntp
 ntpdate pool.ntp.org
@@ -117,8 +118,8 @@ fi
 #sysctl -p
 
 # Disable ufw
-systemctl stop ufw
-systemctl disable ufw
+# systemctl stop ufw
+# systemctl disable ufw
 
 
 # output