Incorrect Birthday?

[Arcturus]

So this is a slightly embarrassing thing to post... I realized the birthday on my account is ten years earlier than it should be. Now, the age in my signature is correct, but I think when I joined the site about five years ago, I, being a stupid teenager, (and I still am!) I lied about my age and bumped it up by ten. Is there a way to fix this without having to make a new account? I'd rather the clerical error be corrected, and I would appreciate if anyone knows how I could go about this. Thanks.