The Railwaymen will go into the hat for the Third round draw with the chance of drawing one of the big Premiership big boys.
Holland told the official site "It is obviously great to get through, the third round is where the likes of Liverpool and Manchester United, Chelsea etc, so all the players are really excited and I thought they deserved it.
"The effort was good, and secondly the concentration as much as anything. Bristol played very well and have a good way of playing. We really only had a day to work on it, and we used that to work on our shape, and to restrict their room. More often that not we did that well, so we probably kept them to mainly shots outside the box, and what a goal that was that from Wilson.
A delighted boss added: "The players deserve a lot of credit for tonight, it was a spirited performance with a fair amount of quality and thought as well."