# Installing Vassal for older MacOS machines **URL:** \ **Category:** Documentation\ **Tags:** v3\_7, tutorial\ **Created:** [December 3, 2024, 3:04pm UTC](https://forum.vassalengine.org/t/installing-vassal-for-older-macos-machines/84048 "2024-12-03T15:04:31Z")\ **Posts on this page:** 1\ **Showing post:** 1
**Author:** ![marktb1961](https://forum.vassalengine.org/user_avatar/forum.vassalengine.org/marktb1961/32/231_2.png) [@marktb1961](https://forum.vassalengine.org/u/marktb1961)\ **Post date:** [December 3, 2024, 3:04pm UTC](https://forum.vassalengine.org/t/installing-vassal-for-older-macos-machines/84048/1 "2024-12-03T15:04:31Z")
Mac users on Catalina (MacOS 10.13) [reported](https://forum.vassalengine.org/t/cant-upgrade-vassal-on-macos/79553) being unable to install Vassal beyond 3.7.9. From those reports the following solution emerged: > [@Can't upgrade VASSAL on MacOS](https://forum.vassalengine.org/t/cant-upgrade-vassal-on-macos/79553/58): > > For anyone who wants to run the current Vassal MacOS package on a version of MacOS which doesn’t support Java 21 or newer, the solution is to replace the bundled Java with Java 17. Step by step (replacing “3.7.12” in steps 5 & 6 with the version of Vassal that you install): > [@Can't upgrade VASSAL on MacOS](https://forum.vassalengine.org/t/cant-upgrade-vassal-on-macos/79553/60): > > 1. Download the [MacOS release](https://github.com/vassalengine/vassal/releases/download/3.7.12/VASSAL-3.7.12-macos-universal.dmg). > 2. Install it. > 3. Download [Java 17](https://adoptium.net/temurin/releases/?version=17&os=mac). > 4. Install it. > 5. Delete `/Applications/VASSAL 3.7.12.app/Contents/MacOS/jre`. > 6. Move `/Library/Java/JavaVirtualMachines/temurin-17.jdk/Contents/Home` to `/Applications/VASSAL 3.7.12.app/Contents/MacOS/jre`. Note, you will need to repeat this process whenever you update Vassal. --- _[View the full topic](https://forum.vassalengine.org/t/installing-vassal-for-older-macos-machines/84048)._