United have taken 25 points out of a 27 under interim boss Ole Gunnar Solskjaer.
And Jones said: "Everyone's going to take us seriously now.
"We might have been a bit of a laughing stock at the start of the season — but certainly not now.
"We're improving, still getting better.
"It was tough for everyone involved. Everyone at the club, the supporters, everyone.
"But it's about becoming stronger and seeing that through. I've said in the past, we've not achieved anything yet.
"We're under no illusions of that, but we're heading in the right direction."