Project management (PM) capabilities define organizational abilities of delivering predictable project results in a changing environment. For evaluation and continuous improvement of the organizational PM capabilities, a PM maturity model is used. This model is a tool to benchmark existing PM processes against best practices and to identify the most suitable practices for implementation in an organization. Patterns are used for collection of the best practices and reusable solutions. The patterns are stored in the pattern repository, which allows not only identify the best practice for the implementation of PM maturity model but also supports proactive adaptation of PM processes according to changes in organization’s or project’s environment. This paper introduces the pattern repository as a support tool to enhance the PM capabilities. Design of the repository and integration with PM information system are presented as well as a usage example is provided.