diff --git a/requirement.txt b/requirement.txt
index d86c80e..0c6f033 100644
--- a/requirement.txt
+++ b/requirement.txt
@@ -21,7 +21,7 @@ lxml==4.1.1
 Markdown==2.6.10
 MarkupSafe==1.0
 matplotlib==2.1.1
-mistune==0.8.1
+mistune==2.0.3
 motmetrics==1.1.1
 networkx==2.0
 notebook==5.2.2