Execute this from within the drupal directory
php core/scripts/password-hash.sh 'newPassword'
password: 'newPassword' hash: $S$EHKLUvRyA/5gpTqWsICIePmwOaQ4oPwMEAfRySELtZ4JdZ8uiYCo
Execute from within MySQL:
UPDATE users_field_data SET pass='$S$EHKLUvRyA/5gpTqWsICIePmwOaQ4oPwMEAfRySELtZ4JdZ8uiYCo' WHERE uid = 1;
DELETE FROM cache_entity WHERE cid = 'values:user:1';