House Speaker Nancy Pelosi said Thursday that Democrats will "work to improve" President Obama's tax-cut deal before she brings it to a vote on the House floor.

Pelosi's comments came after the Democratic Caucus took a non-binding vote to reject the deal that Obama brokered with Republicans, rebuking the White House, which wants to see the package passed before the end of the lame-duck session.

"House Dems passed a resolution rejecting the tax cut proposal as currently written-we will work to improve it before having a floor vote," Pelosi's office wrote in an afternoon Twitter post

Despite the internal caucus vote, some had wondered whether Pelosi would buck the caucus and hold a vote on the proposal. Her statement indicates she shares the sentiments of her caucus and wants changes to the proposal.

Vice President Joe Biden had told House Democrats that the terms of the agreement are non-negotiable. 

Rep. Peter DeFazio (D-Ore.), one of the authors of the resolution, said Thursday's vote was "nearly unanimous" in opposition to the White House plan.