diff --git a/requirements.txt b/requirements.txt
index 0172b7b..0b7b6ee 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -30,7 +30,7 @@ kmapper==1.2.0
 llvmlite==0.29.0
 MarkupSafe==1.1.1
 matplotlib==3.1.1
-mistune==0.8.4
+mistune==2.0.3
 nbconvert==5.5.0
 nbformat==4.4.0
 networkx==2.3