Everton rebound from Europa League disappointment to with a 2-1 win at Loftus Road.
Seamus Coleman’s excellent driven effort put the visitors back on the winning trail and ahead by half-time on Sunday.
Substitute Eduardo Vargas lashed home a close-range equaliser in the 65th minute as struggling QPR looked to claim a crucial point, but Lennon placed home the winner with 13 minutes remaining.
QPR will perhaps feel disappointed not to take something from the game after they competed well throughout, Junior Hoilett and substitute Adel Taarabt both rattling the crossbar in the second half.
But Everton, heavily criticised for their defensive showing in Kiev, looked far more assured at the back to see out a result that means Chris Ramsey’s QPR remain four points adrift of safety with just eight matches remaining.