Seb Palmer-Houlden netted a stoppage-time winner as Newport continued their strong run of form with a 1-0 triumph at Doncaster.
Clear-cut chances were hard to come by during a game in which both sides lacked quality in their creativity.
But Palmer-Houlden snatched the three points three minutes into added time when he connected with a side-foot volley as he met Lewis Payne’s cross in the middle of the goal.
It had been a lacklustre affair for much of the 93 minutes that preceded the winner.
Will Evans saw a volley deflected wide after controlling the ball with his chest as Newport looked to capitalise on a bright start.
Hosts Doncaster grew into the game and new signing Billy Waters drew a good save from Nick Townsend with a diving header before Joe Ironside and Luke Molyneux were denied by the Newport keeper.
Ironside saw a volley cannon off Townsend and rattle the crossbar with 13 minutes to go and Doncaster substitute Kyle Hurst poked a shot straight at Townsend before Palmer-Houlden’s winner.