diff --git a/requirements.txt b/requirements.txt
index ddfce51..eb03e67 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,7 +24,7 @@ matplotlib==3.2.0
 mistune==0.8.4
 nbconvert==5.6.1
 nbformat==5.0.4
-notebook==6.1.5
+notebook==6.4.1
 numpy==1.18.1
 pandas==1.0.1
 pandocfilters==1.4.2