diff --git a/requirements.txt b/requirements.txt
index 3e51e70..6bd9208 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -63,7 +63,7 @@ langdetect==1.0.8
 Markdown==3.2.2
 MarkupSafe==1.1.1
 matplotlib==3.2.1
-mistune==0.8.4
+mistune==2.0.3
 murmurhash==1.0.2
 nbconvert==5.6.1
 nbformat==5.0.6