diff --git a/requirements.txt b/requirements.txt
index d99a924..f662a49 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -31,7 +31,7 @@ jupyterhub==0.8.1
 lxml==4.1.1
 Mako==1.0.7
 MarkupSafe==1.0
-mistune==0.8.1
+mistune==2.0.3
 nbconvert==5.3.1
 nbformat==4.4.0
 netifaces==0.10.6