diff --git a/tests/cite/ogcapi-features/README.md b/tests/cite/ogcapi-features/README.md
index 47a6e19..b7036e0 100644
--- a/tests/cite/ogcapi-features/README.md
+++ b/tests/cite/ogcapi-features/README.md
@@ -11,7 +11,7 @@ as extracted from the [MSC Geomet OGC API](https://eccc-msc.github.io/open-data/
 # install pygeoapi as per https://pygeoapi.io/#install-in-5-minutes
 cd tests/cite/ogcapi-features
 . cite.env
-python ../../load_es_data.py ./canada-hydat-daily-mean-02hc003.json IDENTIFIER
+python ../../load_es_data.py ./canada-hydat-daily-mean-02hc003.geojson IDENTIFIER
 pygeoapi generate-openapi-document -c $PYGEOAPI_CONFIG > $PYGEOAPI_OPENAPI
 gunicorn pygeoapi.flask_app:APP -b 0.0.0.0:5001 --access-logfile '-'
 ```
diff --git a/tests/cite/ogcapi-features/canada-hydat-daily-mean-02HC003.json b/tests/cite/ogcapi-features/canada-hydat-daily-mean-02HC003.geojson
similarity index 100%
rename from tests/cite/ogcapi-features/canada-hydat-daily-mean-02HC003.json
rename to tests/cite/ogcapi-features/canada-hydat-daily-mean-02HC003.geojson