When WordPress says you are using an insecure version of PHP but you just upgraded it.
Wordpress says you have to upgrade your insecure version of PHP 7.0. PHP 7.4 is the current version. You have to add the repository, then update. Ubuntu: sudo add-apt-repository ppa:ondrej/php sudo apt-get update Debian: sudo apt install apt-transport-https lsb-release ca-certificates sudo wget -O /etc/apt/trusted.gpg.d/php.gpg https://packages.sury.org/php/apt.gpg sudo sh -c 'echo "deb https://packages.sury.org/php/ $(lsb_release -sc) main" > /etc/apt/sources.list.d/php.list' sudo apt update Change to the php version. sudo update-alternatives --config php Enable the correct version in apache. sudo a2enmod php7.4 Disable the old version. sudo a2dismod php7.0 Then restart apache2. sudo systemctl restart apache2