On Sunday, the Victoria's Secret model reactivated her account and shared a series of three red-tinged party photos with fans.
Earlier in the week, the 21-year-old reality star explained her decision to leave Instagram during an appearance on the Ellen DeGeneres Show.
"I don't know, I just wanted to detox," Jenner said at the time. "I just felt like I wanted a little bit of a break. I'm always on it. I would wake up in the morning and look at it first thing, I'd go to bed and it's the last thing I would look at. I felt a little too dependent on it, so I wanted to take a minute to detox."