diff --git a/docs/source/data-publishing/ogcapi-features.rst b/docs/source/data-publishing/ogcapi-features.rst
index 3f23f12..01251d9 100644
--- a/docs/source/data-publishing/ogcapi-features.rst
+++ b/docs/source/data-publishing/ogcapi-features.rst
@@ -167,7 +167,10 @@ The OGR provider requires a recent (3+) version of GDAL to be installed.
 MongoDB
 ^^^^^^^
 
-.. todo:: add overview and requirements
+.. note::
+   Mongo 5 or greater is supported.
+
+* each document must be a GeoJSON Feature, with a valid geometry.
 
 .. code-block:: yaml