Congrats to Allison Williams, who plays Marnie Michaels on HBO's breakout hit 'Girls.' She is getting married!

While Marnie is a frustrated singleton, her portrayer, 25, will swap vows with her longtime boyfriend, College Humor co-founder Ricky Van Veen. They've been dating for three years.

Williams' rep confirmed the good news about her impending nuptials to PEOPLE.

Williams is the daughter of NBC news anchor Brian Williams and the actress recently said that her father digs her BF. So he is likely over the moon about the engagement. It's always good when the parents approve, right?!

Despite the quick fame that accompanies 'Girls' becoming such a runaway hit, Williams remains a bit of a traditionalist. She recently said, "I'd love to be a mom." She also said that she would let her career take a backseat to family. Clearly, Williams is a girl with her priorities in line.

Congrats again to Williams and Van Veen on their engagement.