The tension is also the first thing I would try, if you over tighten then it is likely to squeak. If its every time then you may need to adjust them a touch. Loosen the two allen bolts, adjust so that the pads look aligned and don't touch the rotor, tighten the bolts a little, spin the wheel, apply the brake, keep brake on with one hand and tighten two Allen bolts with other hand.