In today's world of information technology disruption, library science must adapt quickly and accurately. The true library will always play an important role as a center of knowledge, including the mosque library, which is a distinct type of library because the majority of its collections are religious in nature. This article intends to discuss the New Five Laws of Librarianship as proposed by Michael Gorman, who revised the Ranganathan concept. The concept will be tested to determine its applicability to the design of the mosque library development, which is tasked with providing services to the surrounding Muslim community. Gorman's principle that libraries serve humanity has a meeting point with the great ethos of mosque library managers in Indonesia. However, many things in the mosque library's management need to be updated, such as strengthening services, optimizing more modern facilities, and assisting wider stakeholders.