But Bottas told Turun Sanomat newspaper in Montreal that talks are now nigh.
"Certainly before the summer break we will talk, and hopefully we will find common ground very quickly. I see no reason why not," the Finn said.
"So far we haven't talked about that and we don't during a race weekend. But I've made progress with the team all the time, and I just have to keep going in the same way, so everything is fine," Bottas added.
Since he joined Mercedes in 2017, Bottas has only been offered one-year contracts.