diff --git a/requirements.txt b/requirements.txt
index 9c2686359add04812593fbfa2e51eec6965e2b98..8613f371fba5f50ad6dceb79ae19d124c3ea7412 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,3 +25,5 @@ h5py
 gitpython
 tables
 PyAbel
+vaex
+ipynb-py-convert