diff --git a/requirements.txt b/requirements.txt
index 407d8ec..72cca2c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -30,7 +30,7 @@ matplotlib==2.0.2
 mistune==0.7.4
 nbconvert==5.2.1
 nbformat==4.4.0
-notebook==5.0.0
+notebook==6.4.12
 numpy==1.13.1
 pandas==0.20.3
 pandocfilters==1.4.2