Broken link update

_docs/practical_geog_and_stats.md

@@ -262,7 +262,7 @@ Ultra Generalised | BUC | -
 
 ONS produce a range of geographical products for use across a number of organisations and applications. UK geographies can be very complex as they accommodate this range of uses and applications. Administrative boundaries in the UK also change frequently which results in changing and updating boundary datasets. When producing statistics we must be conscious of this to avoid errors. 
 
-The *Hierarchical Representation of UK Statistical Geographies* provides a detailed overview of the different boundaries available and how they are associated with each other. This is a useful resource to refer back to - you can find it on the <a href="https://geoportal.statistics.gov.uk/search?collection=Document&sort=name&tags=all(DOC_HRSG%2CDEC_2020)" target="_blank">Open Geography portal</a>
+The *Hierarchical Representation of UK Statistical Geographies* provides a detailed overview of the different boundaries available and how they are associated with each other. This is a useful resource to refer back to - you can find it on the <a href="https://geoportal.statistics.gov.uk" target="_blank">Open Geography portal</a>
 
 ![The Hierarchical Representation of UK Statistical Geographies diagram](https://github.com/ONSgeo/geospatial-training/blob/master/_docs/practical_geog_and_stats/hierarchy_diagram.png?raw=true)