This working paper discusses on the current progress and challenges that faces actors involved in the oversight of Indonesia’s security sector governance (SSG). There are 4 main actors in focus, namely the parliament, independent or internal oversight bodies, civil society organizations (CSOs), and think tanks. The paper argues that despite progresses are evident, all four actors are still laden with problems that hamper their effort in effectively providing oversight to Indonesia’s SSG. Common issues such as the lack of human capacity, funding, and coordination needs to be resolved in order for the actors to be able to effectively provide the needed oversight.