diff --git a/harden b/harden
index 4341e70..122dde7 100755
--- a/harden
+++ b/harden
@@ -667,16 +667,13 @@ function update_system {
             export NEEDRESTART_MODE=a
             export DEBIAN_PRIORITY=critical
             # Running sudo with -E will preserve the environment variables set in the script
-            sudo -E apt update -y && sudo apt upgrade -y # Update the package list and upgrade the packages
-            sudo -E apt install -y
+            sudo -E apt update -y && sudo apt upgrade -y && sudo apt autoremove -y && sudo apt autoclean -y # Update the package list, upgrade the packages, remove unnecessary packages and clean old package's cache
             ;;
         "dnf")                    # If the package manager is dnf
             sudo dnf upgrade -y      # Update the package list
-            sudo dnf install -y
             ;;
         "zypper")                    # If the package manager is zypper
             sudo zypper update -y       # Update the package list
-            sudo zypper install -y
             ;;
         *)
             # If the package manager is not one of the above, output unsupported package manager