Background Check Question?

When I applied for a recent job, I submitted my GPA on my application before my last semester was over. After my last semester, my GPA dropped one point (3.7 to a 3.6). Now that I got the offer, they are conducting a background check through Kroll. I'm afraid that when Kroll pulls my transcript (can they even do that?) they will see a 3.6 and not a 3.7 like I wrote on my application. Should I tell my employer? Should I notify Kroll directly? What should I do??