How to set Laravel to generate files with required permissions

I have a deploy BASH script which runs as Jenkins CI job. It runs under the jenkins user. Deploy needs to delete old directory and replace it with new one. But there is a problem. Laravel generates the files like session or cache with chmod 644 as www-data user. It means although Jenkins is in the www-data group he can not delete the generated files cause group has only read permission.

The question is is there a way to force Laravel or PHP demon to generate files with required permissions e.g. 664? Hope it is. Thanks for any help.