Where is the leak from? If the leak is from between the oil filter adapter and the engine block, there is an o-ring there that you can change. There is a bolt that attaches the adapter to the block, loosen and remove, remove the adapter, get a new o-ring and re-install.
If it's leaking from between the filter and the adapter, usually it's either a bad filter gasket, or as mentioned, failure to remove the old gasket during an oil change. That usually does result in more of a gush than a leak.