Update UIViewController after Dismissing Modal Segue

I am currently designing the structure for my first iPhone game and ran into a problem. Currently, I have a 'MenuViewController' that allows you to pick the level to play and a 'LevelViewController' where the level is played.

A UIButton on the 'MenuViewController' triggers a modal segue to the 'LevelViewController'.

A UIButton on the 'LevelViewController' triggers the following method to return to the 'MenuViewController':

-(IBAction)back:(id)sender //complete
{
    [self dismissModalViewControllerAnimated:YES];
}

The problem is, I have a UILabel on the menu page that prints the number of total points a player has. Whenever I go back to the menu from the level, I want this label to automatically update. Currently, the label is defined programmatically in the 'MenuViewController':

-(void)viewDidLoad {
    [super viewDidLoad];
    CGRect pointsFrame = CGRectMake(100,45,120,20);
    UILabel *pointsLabel = [[UILabel alloc] initWithFrame:pointsFrame];
    [pointsLabel setText:[NSString stringWithFormat:@"Points: %i", self.playerPoints]];
    [self.pointsLabel setTag:-100]; //pointsLabel tag is -100 for id purposes
}

self.playerPoints is an integer property of MenuViewController

Is there a way I could update the label? Thanks ahead of time!