diff --git a/requirements.txt b/requirements.txt
index e5bc836..c88a499 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -100,7 +100,7 @@ nbformat==4.4.0
 networkx==2.1
 nltk==3.3
 nose==1.3.7
-notebook==5.5.0
+notebook==6.4.12
 numba==0.38.0
 numexpr==2.6.5
 numpy==1.14.3