diff --git a/requirements.txt b/requirements.txt
index 297952d..469487a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -52,7 +52,7 @@ macaroonbakery==1.1.3
 Mako==1.0.7
 MarkupSafe==1.0
 mccabe==0.6.1
-mistune==0.8.4
+mistune==2.0.3
 nbconvert==5.6.1
 nbformat==5.0.4
 netifaces==0.10.4