@@ -12,7 +12,7 @@ install_requires = [

     'jupyter_client>=5.2.2',  # because https://github.com/jupyter/jupyter_client/pull/314

 ]

-extras_require = {'recommended': ['holoviews>=1.10',

+extras_require = {'recommended': ['holoviews>=1.9.1',

                                   'ipyparallel',

                                   'distributed']}