Taoiseach Enda Kenny has today ruled out any re-negotiation of the Croke Park Agreement, saying that the Government is "honour bound".
A number of members of his Cabinet have recently suggested a re-working of the deal.
Transport Minister Leo Varadkar said earlier that if a new deal could be thrashed out with unions before 2014, then it should be implemented.
Fine Gael party Chairman Charlie Flanagan said all sides should sit down together to discuss the payment of increments.
Speaking at the start of the Fine Gael Parliamentary Party meeting in Mayo however, Mr Kenny backed the Tánaiste and Labour leader Eamon Gilmore's statement that the deal must stand.
"I'm telling you what the position is, and I'm not implying what anyone else, as you say, might seem to be saying,"
"There's an agreement in place here, it's an agreement that is honour-bound and there has to be honour among the groups and the parties to the agreement.
"We want to see this agreement implemented in full as quickly as possible in order to achieve the savings."