Steering Stem

so i was changing my handlebars the other day, and i realized that my steering stem is slightly bent, i couldnt tell with the old bars becasue they were so low, but i got a high bar this time and its very noticable... i dont really have money to spare to buy a new one, even though i'd like to have a houser. But, i was wondering if it would be safe to try and tap it back into place with a hammer? or is there a better way?