Why is it giving me an infinite loop?

import java.util.Random; 
import java.util.Scanner;

public class GuessingGameV1
{
    public static void main(String[] args)
    {
        int number_guesses = 0;
        Random rand = new Random(); 
        int rand_int = rand.nextInt(101); 

        Scanner in = new Scanner(System.in);  
        int user_guess = in.nextInt(); 

        boolean win = false;

        while(win == false)
        {   
            if (user_guess == rand_int){
                win = true; 
            }
            else if (user_guess > rand_int) {
                System.out.println("Too High");    
            } 
            else if (user_guess < rand_int) {
                System.out.println("Too Low");     
            }
            number_guesses++;
        }
        System.out.println("Congratulations");
        System.out.println("The random number was " + rand_int);
        System.out.println("Number of guesses " + number_guesses);
    }
}