I implemented a contract on the ethereum main network using online remix IDE.
I have developed that Contract using “@openzeppelin/contract-ethereum-package”: “^ 2.5.0”.
Now I want to upgrade this contract but couldn’t find any way.
I don’t have an implementation JSON file or anything that can help me get out of it.
I only have the address of the contract and its source code available on my system.
Could someone please suggest the way so that I can update it?