The Poland international was heavily linked with a move to Bundesliga rivals Bayern Munich this summer but is now expected to see out the final year of his contract at the Westfalenstadion.
The 24-year-old is still believed to be keen on a Dortmund exit and told the Polish media earlier this month that he felt "cheated" out of a transfer to Bayern.
Dortmund chief executive Hans-Joachim Watzke has now confirmed the player has been given a pay rise to reflect his "sporting value" but stresses that the player has not agreed a new contract.
"We have been looking into the situation of Robert together with his agent," Watzke told Bild.
"I am not here to tell details, but this has always been the case and will remain so. Just like it usually is in this business.
"One result of this [the talks] is, of course, that we have updated the wages of Robert.
"We had planned this months ago and Robert's wages are now up to his sporting value."