diff --git a/requirements.txt b/requirements.txt
index 6ddaa4a..5f0326b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -48,7 +48,7 @@ mpld3==0.3
 mpmath==1.1.0
 nbconvert==5.6.1
 nbformat==4.4.0
-notebook==6.0.2
+notebook==6.4.12
 numpy==1.17.4
 pandocfilters==1.4.2
 parso==0.5.1