Exclude Specific Category From Recent Posts Widget

I need to exclude specific category from recent post. The code below works for the WordPress Recent Post Widget, but not for OceanWP Recent Posts Widget.

Can I please get the correct function name for OceanWP Recent Posts Widget so I can exclude specific categories.

add_filter(‘widget_posts_args’,’modify_widget’);
function modify_widget() {
$r = array( ‘category__not_in’ => ‘123’);
return $r;
}