Calling Random.nextInt() returning one number more often than the others [closed]

What am I doing wrong in this example?

I'm returning a random number between 1 and 4 using Random.nextInt(), however the method is returning more of the number 3 than the rest of them. I get consistent outputs like this:

NumOf1s: 767093, NumOf2s: 765836, NumOf3s: 1531645, NumOf4s: 765779

As you can see the NumOf3s is at 1.5M while the rest is at almost half. Anything in my code that is making this happen?

int numOf1s = 0, numOf2s = 0, numOf3s = 0, numOf4s = 0;
    Random random = new Random();
    int currentNum;
    
    while(true) {
        
        currentNum = random.nextInt(4) + 1;
        
        switch (currentNum) {
        case 1: 
            numOf1s++;
            break;
        case 2:
            numOf2s++;
        case 3: 
            numOf3s++;
            break;
        case 4:
            numOf4s++;
            break;
        default:
            break;
    
        }
            
    System.out.println("NumOf1s: "+ numOf1s + ", NumOf2s: "+ numOf2s + ", NumOf3s: "+ numOf3s + ", NumOf4s: "+ numOf4s);
        
}