Increase File Upload Size on Drag & Drop

Hello!
I would like to know how to increase the size of a file a person can upload onto my WordPress site using Contact Form 7’s Drag & Drop plugin.
If I’m correct the maximum size one can upload is 10MB, I would like to increase that up to at least 100MB, because my company works with large size files too, and I would like to be able to offer that option to a customer.
I’ve looked far and wide but I couldn’t find a solution. Any help would be greatly appreciated!
Thank you in advance!