maybe loosen it just a bit. it's supposed to be snug, but not necceasrily tight.
you should be able to slip a pinky under it fairly easily.
You can tighten it a bit for a workout or other activity, if it's annoying you by moving a bit too much on your wrist. But your skin will also do better with a little air every so often, so your default tighness should have a little space.