Lennon paid tribute to his side's character after the narrow win.
He said: "I am more pleased today than I was last week.
I asked them at half-time, 'can you see it through now? Can you go and get a goal and maybe another one and win the game?' And they did it.
"And without being brilliant, I am pleased with the character my team showed today and the ability to grind out a result.
"My back four and midfield two were outstanding when they had to be and we had to rely on the goalkeeper (stand-in Lukasz Zaluska) but that is what he is paid for.
"We dominated the second half at times and I would like us to create more chances but we are two games in.
"Possibly we could have drawn or lost that game earlier in the season."