diff --git a/requirements.txt b/requirements.txt
index c0961d0..fcd5ae3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -26,7 +26,7 @@ jupyterlab-server==1.1.1
 kiwisolver==1.2.0
 MarkupSafe==1.1.1
 matplotlib==3.2.1
-mistune==0.8.4
+mistune==2.0.3
 mlxtend==0.17.2
 nbconvert==5.6.1
 nbformat==5.0.5