My MAMP PRO 5.1 will not update MAMP GmbH January 29, 2019 13:46 Updated Follow This is a known problem. Please download the installation package for version 5.2 from our website. In the future, you should be able to update through the app. Related articles Is timeEdition subscription based? Which PHP modules are included? I want to revert back to MAMP PRO 4.5. Apache will not start on MAMP 3.2 ? Where can I find more help and troubleshooting articles?