Out of memory issue with Chrome and unit tests

I have a test suite of around 800 tests in a repository.
When I run the tests locally I end up with an Aw Snap screen at some point during the tests running.
It’s more or less running on the build server (running headless), but locally it breaks almost every time.

Is there any way to free up memory to make it possible to run through the tests locally again?
It’s an issue that recently started to appear and we haven’t changed the unit tests to something that should cause this issue so I am afraid that it has to do with a Chrome update or so.

We have an index file that runs
WCT.loadSuites([arrayOfSuites]) and each unit test have their own file
with suite(), setup and tests.

Thanks