anchor.diff:      };
     jquery =
       fetchzip {
  -      url = "https://registry.npmjs.org/jquery/-/jquery-3.2.1.tgz";
  -      sha256 = "1j6y18miwzafdj8kfpwbmbn9qvgnbnpc7l4arqrhqj33m04xrlgi";
  +      url = "https://registry.npmjs.org/jquery/-/jquery-3.5.1.tgz";
  +      sha256 = "0yi9ql493din1qa1s923nd5zvd0klk1sx00xj1wx2yambmq86vm9";
       };
     moment =
       fetchzip {
  -      url = "https://registry.npmjs.org/moment/-/moment-2.22.2.tgz";
  -      sha256 = "12gb3p0rz5wyjwykv9g0pix7dd352lx1z7rzdjsf2brhwc4ffyip";
  +      url = "https://registry.npmjs.org/moment/-/moment-2.24.0.tgz";
  +      sha256 = "0ifzzla4zffw23g3xvhwx3fj3jny6cjzxfzl1x0317q8wa0c7w5i";
       };
     requirejs =
       fetchzip {
  -      url = "https://registry.npmjs.org/requirejs/-/requirejs-2.3.4.tgz";
  -      sha256 = "0q6mkj0iv341kks06dya6lfs2kdw0n6vc7n4a7aa3ia530fk9vja";
  +      url = "https://registry.npmjs.org/requirejs/-/requirejs-2.3.6.tgz";
  +      sha256 = "165hkli3qcd59cjqvli9r5f92i0h7czkmhcg1cgwamw2d0b7xibz";
       };
   
   in
   
   buildPythonPackage rec {
     pname = "jupyterhub";
  -  version = "1.1.0";
  -  disabled = pythonOlder "3.5";
  +  version = "1.3.0";
  +  disabled = pythonOlder "3.6";
   
     src = fetchPypi {
       inherit pname version;
  -    sha256 = "1mqknz0rxqzx4nc57vscvfh2d4znzlzpy83ancqxdaq3b8i70al5";
  +    sha256 = "13pf6qhimpaxj20871ff5rvwwan59320cdhhrn9cfh6314971zq5";
     };
   
     # Most of this only applies when building from source (e.g. js/css assets are
  
positive.code:       "'${nodePackages.configurable-http-proxy}/bin/configurable-http-proxy'"
  
      substituteInPlace setup.py --replace \
        "'npm', 'run', 'lessc', '--'" \
        "'${nodePackages.less}/bin/lessc'"
  
      substituteInPlace setup.py --replace \
        "'npm', 'install', '--progress=false'" \
        "'true'"
  
      declare -A deps
      deps[bootstrap]=${bootstrap}
  
negative.code:   '';
  
    propagatedBuildInputs = [
      # https://github.com/jupyterhub/jupyterhub/blob/master/requirements.txt
      alembic
      async_generator
      certipy
      dateutil
      entrypoints
      jinja2
      jupyter-telemetry
      oauthlib
      pamela
      prometheus_client
      requests
      sqlalchemy
      tornado
      traitlets
    ];
  
    # Disable tests because they take an excessive amount of time to complete.
  