Yeah, I don't think age is really of much consequence especially with that small of a margin. However, if is is personally an issue for you then I would just not do it. If the two years is going to in some way stop you from respecting him and being able to submit to him in some way then you don't need to get married.
I'm not sure how old you are but I could see a difference in two years say if he is a Junior in high school and you are in college and discussing marriage. But that would be an issue of getting married inadvisably because of life stage not age. And I think if you are questioning it over something like a two year age difference then you probably need to reevaluate the situation. Obviously, you haven't said so but seems like there is some srt of bigger issue at hand.