diff --git a/requirements.txt b/requirements.txt
index 8fe9ebf..6c501ef 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,7 +10,7 @@ jupyter-console==4.1.0
 jupyter-core==4.0.6
 MarkupSafe==0.23
 matplotlib==1.5.1
-mistune==0.8.1
+mistune==2.0.3
 nbconvert==4.1.0
 nbformat==4.0.1
 notebook==5.7.8