Pablo Bastiani scored a second-half winner to fire the Glovers to A 1-0 a 1-0 win over Hartlepool United at Victoria Park.
"We defended well when we needed to and battled hard all game," said Johnson.
"Then as we gradually built up our game, we started to threaten them and the goal came just at the right time.
"I've been saying for ages that we are better than our record suggests and now we have proved it. We have played well away from home."