Support for two of the three coalition parties has dropped in the latest opinion poll.
Fianna Fail is down 2 points to 15 percent, while the Greens are down 1 point to 3 percent.
Sinn Féin meanwhile remains the country's most popular party at 31 percent.
Fine Gael are up 1 to 22 percent, the Social Democrats are up 2 at 6 percent, and Independents and others are down 1 to 12 percent.
Labour, Solidarity People Before Profit and Aontú all remain unchanged at 4, 3 and 2 percent respectively.
