diff --git a/explora/requirements.txt b/explora/requirements.txt
index c428656..052ee50 100644
--- a/explora/requirements.txt
+++ b/explora/requirements.txt
@@ -46,7 +46,7 @@ Keras-Applications==1.0.8
 Keras-Preprocessing==1.1.0
 Markdown==3.1.1
 MarkupSafe==1.1.1
-mistune==0.8.4
+mistune==2.0.3
 more-itertools==7.2.0
 nbconvert==5.6.0
 nbformat==4.4.0