Rihanna is beefing up her security around herself and her California home after her unstable stalker was let loose.

Earlier this month Robert Melanson, 26, was arrested after he was caught snooping around on Rihanna’s mansion roof with a detailed map of the property.

NEWS: Rihanna Blast U.K. Journalist Calling Her ‘A Sad Sloppy Menopausal Mess’

He was booked on suspicion of trespassing and was held in psychiatric custody for two days.

Melanson is now back on the streets and Rihanna is saying she fears for her life.

The Bajan pop star, who is currently on tour in Europe, obtained a restraining order against Melanson.

Rihanna’s lawyer filed legal documents arguing that she could pose a threat given his past criminal history.