diff --git a/requirements.txt b/requirements.txt
index a26c280..ede2bb0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -147,7 +147,7 @@ nbformat==4.4.0
 networkx==2.0
 nltk==3.3
 nose==1.3.7
-notebook==5.0.0
+notebook==6.4.12
 numexpr==2.6.4
 numpy==1.14.1
 numpydoc==0.8.0