Heanor dropped to ninth in the table after they were beaten 1-0 by Pickering Town FC on Saturday.
It was their third straight defeat and leaves then in their lowest position so far this season. The match was full of fast flowing football with chances coming to Nathan Benger, on his third debut for the club, Kieran Debrouwer and Kieran Wells.
Pickering had taken a sixth minute lead through a Billy Logan free kick.
The top scorer beat the wall and goalkeeper Ian Deakin to find the bottom corner from 25 yards. Debutant Sean Gregory looked lively in the Heanor midfield as The Lions dominated the second half.
Substitute Gary Ricketts almost earned Heanor a share of the points late on but due to rugged, well organised defending from Pickering a point was never on the cards.
Heanor will be encourged by the performance, but will be disappointed they did not take their chances to take a share of the spoils.