Its possible your rubber washer inside the connector has become worn and may need replacing, I think its a good idea to always keep a few spares handy.
This is a very common fault with most connectors but I find the brass couplings less likely to leak.
If you have jets of water spouting all over the place, as a temporary measure it may be necsessary to wrap some rag around it to contain the leak.
Also old hoses and often become perished or brittle and are best stored away from frost during winter to prolong its "life". I find the 'jubilee clips' that tighten with a wing nut around the hose. Good luck T bird+