Support for the Labour Party is down 2 percent to 41 percent , the latest 1News Colmar Brunton political poll shows.
Photo: RNZ / Dom Thomas
Meanwhile, National is up 2 percent to 28 percent and ACT is steady on 14 percent.
The Green Party is up 1 percent to 9 percent while New Zealand First sits on 3 percent.
The Māori Party has dropped 1 percent to 1 percent.
Those figures would give Labour 53 seats in Parliament, National 36, ACT 18, the Greens 12, and the Māori Party one seat.
The 1New Colmar Brunton poll shows Jacinda Ardern down 5 percent to 39 percent in preferred prime minister stakes.
David Seymour's popularity was at 11 percent, while Judith Collins was on 5 percent - with National Party's Christopher Luxon at 4 percent and the Greens' Chloe Swarbrick at 2 percent.
In September polling, ACT leader David Seymour overtook National's Judith Collins as preferred prime minister.
Both major parties took a hit too.
Labour and National both dropped three percentage points, to 43 percent and 26 percent respectively.