power steering pump leaking after fluid change

So I changed the fluid in in power steering pump the other day because I hadnt changed it since I bought it... done this a thousand times before with all of my vehicles with no problems.
After changing the fluid I "burped" the system as you are supposed to. Drove ot for about 5 miles, came home and noticed it leaking from behind the pulley not the lines or reservoir....

Time for a new pump? Did I do something wrong?

Did you overfill it? Mine weeps fluid out the cap if I overfill it. But it is a PSC pump so it may be different

No, It leaks even when Im just parked.