diff --git a/roles/jupyter/defaults/main.yml b/roles/jupyter/defaults/main.yml
index 017b0de30..c879b76ac 100644
--- a/roles/jupyter/defaults/main.yml
+++ b/roles/jupyter/defaults/main.yml
@@ -1,2 +1,3 @@
 notebook_dir: /opt/iiab/notebook
 jupyter_venv: /opt/iiab/jupyter 
+jupyterhub_url: https://github.com/jupyterhub/the-littlest-jupyterhub
diff --git a/roles/jupyter/tasks/install.yml b/roles/jupyter/tasks/install.yml
index 4e2981584..b311464b6 100644
--- a/roles/jupyter/tasks/install.yml
+++ b/roles/jupyter/tasks/install.yml
@@ -11,6 +11,8 @@
   pip:
     name:
        - pip
+       - wheel
+       - ipywidgets
     virtualenv: "{{ jupyter_venv }}"    # /opt/iiab/jupyter
     virtualenv_site_packages: no
     virtualenv_command: /usr/bin/virtualenv