Protests, labelled 'gilet jaunes' demonstrations, have caused havoc across the country in recent weeks, particularly in Paris, with six Ligue 1 games having been postponed in matchweek 17.
And, with police resources needed to deal with more expected riots, half of the scheduled 10 fixtures set to take place in matchweek 18 have now been postponed.
PSG had their last outing against Montpellier put back to January 15, and the Ligue 1 leaders' encounter with Dijon will now also have to be rescheduled.
Montpellier confirmed on Wednesday that their fixture with Nantes had been cancelled, but there was better news for Nice and Saint-Etienne, with their game – along with Lyon's meeting with Monaco – having been moved to Sunday.
A minute’s silence is to be held before each of the games that do go ahead to honour the victims of a recent, unrelated shooting in Strasbourg.
PSG are unlikely to be too upset about the latest cancellation. Thomas Tuchel’s side still set 13 points clear of second place Lille and will now have games in hand to make up.