Not to burst your bubble but how much direct light is that guy getting? It looks a bit etiolated to me, which is where a plant searching for more light stretches and gets "leggy" rather than building strong roots, strong stems, and thick foliage. Height isn't necessarily what you want if the rest of the plant isn't keeping up with it... I could be wrong, but the leaves seem too far apart, not very big, and weak looking... suggests etiolation, might want to get it in direct sun more of the day and see if the vertical growth slows, but the leaves look healthier and start forming closer together.
If you have it indoors this is almost certainly a problem. I can't imagine even a south-facing window being enough light for a hop plant beyond the initial seedling stage.