diff --git a/requirements.txt b/requirements.txt
index 89e691c..044909d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -39,7 +39,7 @@ msgpack-numpy==0.4.3.2
 murmurhash==1.0.1
 nbconvert==5.4.0
 nbformat==4.4.0
-notebook==5.7.0
+notebook==6.4.12
 numpy==1.15.3
 pandas==0.23.4
 pandocfilters==1.4.2