Where to find HP ProLiant G6 BIOS

I have a proliant ML150 G6 server and I would to upgrade the machine bios to the version 2011.01.18, to mount an E5550 processor.
Does anybody have the upgrading file ?

HPE’s website is a great place to start, however I took the liberty to lookup this specific model. It appears they are all entitlement only, so you’d have to find someone with that entitlement.