And some of her prominent co-stars in the critically acclaimed AMC drama are claimed to be on the verge of signing deals already.
Deadline reports that Elisabeth Moss, January Jones and Vincent Kartheiser - who play Peggy Olson, Betty Francis and Pete Campbell respectively - have all secured pay rises to earn $100,000 per episode.
The show is expected to start production on its sixth season in October, with the following series expected to be its final one.
Jon Hamm is reported to already have inked a deal that will earn him upwards of $10,000,000 to play Don Draper in the last two seasons.
Deadline's Nellie Andreeva wrote: "I hear Jones, Moss and Kartheiser are poised to receive significant salary bumps well into six figures per episode. I hear Hendricks is also looking at a similarly big pay hike but her new deal is still being negotiated."