Directed by Mark Sadlek from a script written by Phil Augusta Jackson, the new episode is set to air on April 26.
For her performance in the series, Rae has already received two Golden Globe and one Emmy nominations for Best Actress in a Comedy Series.
Season 4 continues to follow the main characters in the aftermath of the decisions they made in the last season.
Insecure was created by Issa Rae and Larry Wilmore with Rae serving as an executive producer alongside Prentice Penny, Melina Matsoukas, Michael Rotenberg, Dave Becky, Jonathan Berry, Jim Kleverweis and Dayna Lynne North.