The price hike will mean a jump of about 1 to 4 cents per toll zone.
The highway runs from N.C. Highway 147 south of Durham to N.C. 540 and then all the way south to U.S. Highway 64 in Apex.
Responding to an ABC11 I-Team investigation in May, toll officials said the 19 mile stretch of road is on track to meet traffic and revenue projections.
Despite criticism that the toll road is too expensive and underused, officials say they're exceeding their traffic and revenue goals, and say a rate increase isn't necessary right now.
Studies show the busiest parts of the Triangle Expressway averaged 24,000 drivers daily this spring, which is up from 22,000 last March when the toll road was still free.
Officials said the scheduled rate increases are part of the plan to repay the bonds used to finance the highway and they've already deferred increases twice. The increase voted on Thursday was originally scheduled for July 1.