Add PPA for PHP 8.1 sudo apt install software-properties-common sudo add-apt-repository ppa:ondrej/php sudo apt-get update Install PHP 8.1 sudo apt install php8.1 Install PHP 8.1 Packages sudo apt install php8.1-common php8.1-mysql php8.1-xml php8.1-xmlrpc php8.1-curl php8.1-gd php8.1-imagick php8.1-cli php8.1-dev php8.1-imap php8.1-mbstring php8.1-opcache php8.1-soap php8.1-zip php8.1-intl -y PHP 8 Enable sudo a2dismod php<old-php-version> sudo a2enmod php8.1 sudo service apache2 restart Enable PHP version for Console sudo update-alternatives --config php