put it in a mason jar or any air tight container for a while. If it isn't already super crispy dry it should get somewhat wet again after a day or so and like lowrider said it will change.
try not trimming the buds before u dry them, trim after they r dry, that makes for a longer dry (and none of that starve ur plant a couple days before harvest neither)
first things first.. did you airy dry them until the stems snapped???
if so.. you waited too long.
take a look at my Drying & Curing article that I wrote. Tons of people have read it.. and its helped out A LOT of people around here. Especially the noobs.. and people that don't really understand how its properly done.. and what all is involved in properly drying and curing your harvest.