This ranking comes after extending its conference winning streak to eight.
The Nittany Lions swept Dartmouth over the weekend.
The Nittany Lions seemed to find an equalizer in the 88th minute before a last-second free kick goal from the Trojans.
Jess Mruzik notched 18 kills and Izzy Starck had 46 assists in the win.
Ella Jennes scored the game-winning goal in overtime.
The Nittany Lions swept the Big Green 10-1 across the series sweep.