diff --git a/docs/howtos/validate-an-obo-ontology.md b/docs/howtos/validate-an-obo-ontology.md
index ad7c07ef1..081ed8e4b 100644
--- a/docs/howtos/validate-an-obo-ontology.md
+++ b/docs/howtos/validate-an-obo-ontology.md
@@ -80,7 +80,7 @@ TODO: add an option to pass in your own yaml file
 
 The Python API is described here:
 
- - [ValidatorInterface](https://incatools.github.io/ontology-access-kit/interfaces/validator.html)
+ - [ValidatorInterface](https://incatools.github.io/ontology-access-kit/packages/interfaces/validator.html)
 
 Currently there is only one implementation, the SqlDatabase implementation