diff --git a/requirements.txt b/requirements.txt
index 5720646..5903356 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -107,7 +107,7 @@ 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