How to get my humidity up in my humidor?

I got a 150$ humidor, ive seasoned it a few times to make sure the wood is moist. It was fairly stable at 66-68%, loaded my cigars into it. Now, i cant seem to get it above 60%. my cigars arent dried by any means, but i would feel better if they were around 70%. I do have a Gel-crystal humidifier at 70%, whats the best thing to do? Get a smaller one of those to supplement it? or re-season it?