Marcus Rashford's first-half strike proved to be the difference between the two sides, as Erik ten Hag's men returned to the top four.
The Bees proved to be tricky customers at the Theatre of Dreams, with Thomas Frank's side pushing hard to find a equaliser in the second period, but Kevin Schade's effort, which was stopped by the legs of David De Gea, proved to be the best the visitors could muster.
After claiming a vital three points, the Reds' delight was clear to see, with smiles and cheers a popular theme as our players departed the pitch.