Husband won't budge on name..

So, we just found out yesterday that we are expecting a boy! We already have a 3 year old daughter so of course we are beyond excited that we will have one of each. My husband is stuck on naming our son after his father, Randy, but I do not like that name. My husband is not even close to his dad and his dad was never around when he was growing up. I guess I just don't understand why he would want to name our son that if they aren't that close, and it's not a family name or anything! Has anyone else gone through this? Are there any ways of maybe changing his mind? Please help!