From the look of it, that bolt in the lower right corner of the pic is a banjo bolt, which has 2 copper gaskets on either side. The leak is coming from 1 of 3 places:
1. The copper gaskets are leaking and need to be replaced
2. The line is leaking where the rubber meets the brass section
3. The pump itself is leaking and you should simply replace the pump
3 is the most likely from the look of things.