Burp not intercepting brute-force attempts

I am at the second part in login brute forcing skills assessment - website, and I can’t get burp to intercept requests from hydra. However, when I manually enter credentals into the login page, they get intercepted as they should. I have been stuck with this problem for days now, and I have no idea how to fix it.

I think I am missing something here. Does anyone know how to fix it?

hydra -h | grep proxy

you should set your proxy as env variable and then use hydra