diff --git a/justfile b/justfile
index 0e624ed..e25b291 100644
--- a/justfile
+++ b/justfile
@@ -104,6 +104,7 @@ build-misc:
     @just _copy-file-if-not-exists "templates/template.env" ".env"
 build-requirements:
     @{{PYTHON}} -m pip install --disable-pip-version-check -r requirements.txt
+    @{{PYTHON}} -m jupyter nbextension enable --py widgetsnbextension
 build-models:
     @echo "Generate data models from schemata."
     @just _delete-if-folder-exists "models/generated"