Sinn Fein is continuing to struggle after a poor Presidential election campaign.
The latest Red C survey for the Sunday Business Post shows the party's down 2 per cent to 13 points.
Fine Gael still leads the way in the popularity stakes on 34 per cent - up one.
Fianna Fáil's also gained support, Labour's risen one to 6 per cent, with the Independent Alliance also up one to 5.