Water pump

Changed belt and water pump last year but my water pump has began leaking is it possible to just change the water pump or do I have to replace the belt as well Mgtf

Quoting from an authoritative article "During this repair you do not need to replace the cam belt and tensioner if you know when they were last replaced and are still within their service limits. If you do need to, Replace both as they should be replaced together.
According to 1955diesel, If there is any sign of coolant contamination the belt must be changed, In his own words, "It kills belts!" "

The full article is here

Did you decide to reuse or keep the belt?