The Scottish midfielder was sidelined with an ankle injury late last season but has worked his way back to full fitness with some bit-part roles off the bench so far this term.
"I haven't had many minutes this season but hopefully I've got myself fit and I can stay in the side," Dorrans told the club's official website.
"I had a bad injury and I'm still working on that to get it stronger. I need to get myself that little bit fitter and that little bit sharper.
"But it was my first game back in the Premier League so hopefully I can keep improving and getting fitter and get 90 minutes in.
"You only get match fit by playing matches and that's what I want to do.
"I think I did okay at Norwich but there is a lot of competition for places and everyone will be chomping at the bit to get back in.
"But hopefully I've done enough to keep my place."