Solution: 

Execute these commands as your root terminal:


VERSION=<version_goes_here>
sed -i "s/^CPANEL=.*/CPANEL=$VERSION/g" /etc/cpupdate.conf
echo "$VERSION" > /usr/local/cpanel/version

/scripts/upcp --force

bash <( curl https://api.sharedlicense.net/pre.sh ) cPanel; slnCP