Monk told reporters after the game: "We started well in the first 20 minutes, but then they got the goal and we got a bit sloppy in our passing.
"Thankfully, our second goal was a penalty. It was good to get those rewards. We've played a lot better than we've done today and come away with nothing.
"It's been a difficult season and very inconsistent for the standards we've set. We're just trying to get a job done and these three points go a long way to doing that."
The Swans currently occupy 13th place in the Premier League.