diff --git a/setup.py b/setup.py
index f7dc5f0f..181bdffa 100644
--- a/setup.py
+++ b/setup.py
@@ -46,6 +46,7 @@
                       'traits',
                       'traitsui >=5.2.0',
                       'qtconsole',
+                      'ipykernel >=5.2.0',
                       'qtpy',
                       ],
     extras_require={