[1.7.10] Gradle not pulling files down correctly from maven

[AceTwelve]

It looks like in January of 2020, maven decided to block out any http connections and only allow https connections. I'm trying to fix a minor code hiccup for a 1.7.10 mod for my own purposes, but I can't set up a 1.7.10 workspace because of this. I couldn't find anywhere in the build.gradle or in any of the core gradle files that referenced maven directly, so I'm unsure as to how to fix this. Does anyone have any ideas?