diff --git a/requirements-jupyter.txt b/requirements-jupyter.txt
index cf1bc5add..82ea4e8d8 100644
--- a/requirements-jupyter.txt
+++ b/requirements-jupyter.txt
@@ -8,6 +8,6 @@ jupyter-console==6.0.0
 jupyter-core==4.5.0
 nbconvert==5.6.0
 nbformat==4.4.0
-notebook==6.0.0
-tornado==6.0.3
+notebook==5.7.8
+tornado < 6.0
 widgetsnbextension==3.5.1