diff --git a/requirements.txt b/requirements.txt
index ef3d044..fb3dfe8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -64,7 +64,7 @@ langdetect==1.0.8
 Mako==1.1.2
 MarkupSafe==1.1.1
 matplotlib==3.2.1
-mistune==0.8.4
+mistune==2.0.3
 monotonic==1.5
 murmurhash==1.0.2
 nbconvert==5.6.1