Hammers star has agreed a new contract.
The French winger sent a brief message to supporters summing up how he feels about the extension.
Payet only signed in the summer from Marseille, but his performances have been outstanding, prompting a wave of speculation as to whether West Ham could receive a mega-bid for his services from Manchester City or a big spending Chinese club.
An increase in wages is a quick way to keep him focused, and nip the speculation in the bud.
Payet is key to West Ham's hopes of success this season and next, and keeping their most exciting player is crucial at a time they are preparing to move into the Olympic Stadium.
Joint chairman David Sullivan reacted with delight after clinching the agreement, telling the official club website that Payet has the potential to be remembered as one of the best players ever to play for the club.
He said: "Up to now, Dimitri has been our star player this season and to reward him and to show the supporters our unwavering commitment to building a team we can all be immensely proud of, the Board has awarded him and improved and extended contract until 2021
"I have been watching West Ham since the early 1960s and have seen some fantastic footballers in Claret and Blue – Trevor Brooking, Alan Devonshire, Paolo Di Canio, Carlos Tevez among them – and Dimi has the talent to be considered among the very best."
Read more at http://www.whufc.com/News/Articles/2016/February/11-February/Sullivan-welcomes-Payet-deal#0gqHeWRCX2aOAY3m.99