Restorative justice within correctional institutions can facilitate meetings and dialogues between inmates and victims.This offers inmates a second chance to apologize and make amends to the victims, ultimately leading to a fair resolution for both parties. The end result of such agreements does not necessarily have to be the release of inmates. Rather, it aims to raise awareness and promote reintegration among inmates, with the primary focus on the interests of the victims. This study aims to analyze the urgency of comprehensive regulations governing the implementation of restorative justice in Indonesian correctional institutions to reduce overcrowding and improve inmate rehabilitation. The research adopts a doctrinal approach by examining legal regulations, journals, web articles, and report findings related to the discussed concept of restorative justice. The results of this study show that overcrowding occurs in almost all correctional institutions in Indonesia and needs to be addressed due to the vulnerability to human rights violations and horizontal and vertical conflicts within these facilities. Additionally, this concept has been successfully implemented in several countries using various approaches, some of which have already been adopted in Indonesia. Therefore, restorative justice within correctional institutions is highly feasible for adoption in Indonesia. The Ministry of Law and Human Rights of Indonesia should promptly establish and implement relevant rules.