Piracy off the coast of Somalia has elicited a growing body of interdisciplinary research. Much of this research focuses on identifying the root causes of piracy, analyzing onshore and offshore responses, or evaluating various rule-of-law approaches; no study has yet to examine how Somali piracy has impacted prisons. Drawing upon ethnographic research, this article explores how UNODC counter piracy funding is reshaping the carceral spaces of East Africa. I examine how the need to secure and develop Somali piracy prisoners in regional prisons has created a bodies-for-aid penal market in East Africa. Large aid packages are awarded to prisons that agree to accept suspected Somali pirates and ensure the support, maintenance, and enhancement of the lives of Somali piracy prisoners. I theorize a new form of penal aid—biopolitical penal aid—linking prison development funding to the containment of specific prisoner populations. Using the Montagne Posée Prison in the Seychelles as a case study, I explore how biopolitical penal aid is reshaping prison spaces and practices to tease out underlying tensions between international and regional security projects, how these projects are negotiated and appropriated at different scales, and how they are being experienced by staff and Somali piracy prisoners.