The French giants went into their game with Monaco knowing that the title was already theirs thanks to results elsewhere.
Kylian Mbappe came up with all three goals for his side, while long-term injury casualties Cavani and Neymar joined the young sensation on the pitch
But while Mbappe moved to dismiss reports he was considering a move to Real Madrid, the Uruguayan cut a more cautious tone when asked what the future held.
"A lot of things happened this season. It's different every year," he signalled to Canal + at the final whistle.
"The most important thing is to be able to keep our team together.
"My future? I have a contract here. One more year. What do you want? I'm good, serene, happy with
"But in football, you never know."
Cavani moved to Parc des Princes from Napoli in 2013 and has gone on to smash just shy of 200 goals in all competitions during his time in France, winning a host of trophies in the process as PSG have dominated the domestic scene.
At 32 and with his contract set to expire in just over 12 months, though, doubts have begun to circulate over his continuity in Thomas Tuchel's squad.