diff --git a/requirements.txt b/requirements.txt
index 8fc61de..ad0a6ca 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -43,7 +43,7 @@ Markdown==3.0.1
 MarkupSafe==1.1.1
 matplotlib==3.0.2
 mccabe==0.6.1
-mistune==0.8.4
+mistune==2.0.3
 mxnet==1.3.1
 mxnet-cu101==1.4.1
 mxnet-mkl==1.4.1