The Hammers star is keen to see his side start securing clean sheets.
The Hammers were left disappointed on Saturday afternoon as they drew 3-3 with rivals Arsenal.
In a scintillating game West Ham had found themselves 2-0 down before a hat-trick from Andy Carroll saw them take the lead.
It was the fourth consecutive week that they have not been able to keep a clean sheet; with the issue something that is threatening to ruin their Champions League hopes.
And Antonio admits they must start finding their defensive solidity in the coming weeks.
“It’s one of those things where it’s happened to us in the last four games, where we’ve had the lead and we didn’t manage to hold on,” he told whufc.com.
“We’ve just got to find that solidity at the back and not let any more goals in. We’ve not had a clean sheet in a while now, so that’s got to be our next plan.
“It’s part and parcel of football. In the last four games it’s happened to us, but we’ve just got to take it and move on.”
The Hammers must now pick themselves up and look to return to winning ways as soon as possible in their hunt for the top four.
It will not be easy for them though, with league leaders Leicester City next up in the Premier League looking to secure the title.
Before then it is Manchester United in a FA Cup quarter-final replay at the Boleyn Ground and they will need to be better defensively if they are to secure an appearance at Wembley.