diff --git a/update.sh b/update.sh
index e2529aa..b49f0ff 100644
--- a/update.sh
+++ b/update.sh
@@ -45,7 +45,7 @@ if [ ${OS} == "Debian" ] || [ ${OS} == "Ubuntu" ]; then
     apt update; apt upgrade -y
     
     # install the packages on all systems
-    apt install -y apt-transport-https wget tar gnupg2 sudo dnsutils rsync nano htop nload iperf iperf3 unattended-upgrades unzip bzip2 git nfs-common uptimed net-tools build-essential curl realmd oddjob oddjob-mkhomedir sssd sssd-tools libnss-sss libpam-sss adcli mlocate ncdu
+    apt install -y apt-transport-https wget tar gnupg2 sudo dnsutils rsync nano htop nload iperf iperf3 unattended-upgrades unzip bzip2 git nfs-common uptimed net-tools build-essential curl realmd oddjob oddjob-mkhomedir sssd sssd-tools libnss-sss libpam-sss adcli mlocate ncdu wireguard
     
     # enable unattended-upgrades
     echo unattended-upgrades unattended-upgrades/enable_auto_updates boolean true | debconf-set-selections
@@ -88,7 +88,7 @@ elif [ "${OS}" == "CentOS" ] || [ "${OS}" == "Rocky" ]; then
         yum autoremove -y
 
         # install the packages
-        yum install -y sudo rsync tar nano htop nload iperf iperf3 bind-utils yum-cron unzip bzip2 nfs-utils git wget uptimed net-tools make realmd oddjob oddjob-mkhomedir sssd adcli mlocate ncdu
+        yum install -y sudo rsync tar nano htop nload iperf iperf3 bind-utils yum-cron unzip bzip2 nfs-utils git wget uptimed net-tools make realmd oddjob oddjob-mkhomedir sssd adcli mlocate ncdu wireguard
 
         # install vm tools
         if [ "${VM}" == "true" ]; then