diff --git a/setup.cfg b/setup.cfg
index 90c3884..7f531f0 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -21,6 +21,7 @@ packages = find:
 # python_requires = >=3.x
 install_requires =
     panflute
+    ipykernel
     jupyter_client
     nbconvert