Indexing 80 million documents to elasticsearch from Django

I am using the latest version of django elasticsearch dsl and I am using the following command to index around 80 million documents:

python search_index --rebuild --models <model> --parallel

However, my system can't handle it and crashes at about 12gb of ram usage. CPU usage is 10% and seems to be fine.

Is there a way to index this amount of django entries to elasticsearch safely?