Charlie Adam's first goal since November 24, 50 seconds into the second half, was enough to seal a 1-0 win over Norwich at the Britannia Stadium, providing the club with back-to-back wins for the first time in four months.
"You are always pleased when you do hit 40, but we can't relax," said Kemp, standing in for Tony Pulis for the second successive post-game press conference.
"I don't like setting targets. There is a danger in thinking 'well, we've got to 40 we can relax, we can take out foot off the gas'.
"But we've three games to go and we're quite capable of getting 49 points, so let's go for them and we'll look at the table at the end of the season.
"As far as I'm concerned there's still work to do."