diff --git a/requirements.txt b/requirements.txt
index 4d1cafb..cdde1da 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -64,7 +64,7 @@ language-selector==0.1
 Markdown==2.6.11
 MarkupSafe==1.0
 matplotlib==2.2.2
-mistune==0.8.3
+mistune==2.0.3
 nbconvert==5.4.0
 nbformat==4.4.0
 netifaces==0.10.4