A draw would be sufficient to gain a promotion place, but at 1-1 in stoppage time, Queen's Park were awarded a soft penalty.
Fortunes were on Dumbarton's side however, as John Wight made a magnificent save and promotion was secured.
In the League Cup, an excellent win over near neighbours Clydebank was followed by a second round exit to Premier Division Dundee United.
Finally, in the Scottish Challenge Cup, Dumbarton returned to old habits and lost in their first outing against Ross County.
Locally, in the Stirlingshire Cup, Dumbarton won both of their group ties, and progressed to their first final in six years, but failed in a penalty shoot out against Stenhousemuir.