diff --git a/dev/requirements.txt b/dev/requirements.txt
index 27ceb4c..6310453 100644
--- a/dev/requirements.txt
+++ b/dev/requirements.txt
@@ -17,7 +17,7 @@ jupyter-client==6.1.6
 jupyter-console==6.1.0
 jupyter-core==4.6.3
 MarkupSafe==1.1.1
-mistune==0.8.4
+mistune==2.0.1
 nbconvert==5.6.1
 nbformat==5.0.7
 notebook==6.0.3