diff --git a/requirements/dev.txt b/requirements/dev.txt
index ca98c9400c4369a3705859c099ee2224529816f0..696eed8cdd8d7bdbd34cb6c095a145640fe8fec1 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -1,5 +1,6 @@
 black==21.6b0
 km3net-testdata>=0.2.26
+ipykernel
 matplotlib
 memory_profiler
 numpydoc==0.9.2