diff --git a/requirements.txt b/requirements.txt
index d3239b3..1f45152 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -54,7 +54,7 @@ Markdown==3.2.2
 MarkupSafe==1.1.1
 matplotlib==3.2.1
 mccabe==0.6.1
-mistune==0.8.4
+mistune==2.0.3
 more-itertools==8.3.0
 MouseInfo==0.1.3
 mxnet==1.6.0