Poland's Prime Minister Ewa Kopacz has dismissed opposition calls for her to resign with her Cabinet amid a revived 2014 eavesdropping scandal.

Kopacz is to name four new ministers next week to replace Cabinet members who resigned Wednesday. They were secretly taped in 2013 and 2014 during private meetings in restaurants. The public was shocked to hear their views and foul language.

Illegal publication this week of secret files from an investigation into the recordings revived the scandal, just months before Poland's general elections.

The opposition party, whose candidate Andrzej Duda won the May presidential election, has suggested that Kopacz and the Cabinet should resign now and that an interim government should be formed until the parliamentary vote.

Kopacz said the opposition should "try and wait until the elections."