diff --git a/requirements.txt b/requirements.txt
index a85aae6..eb4d51d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,7 +24,7 @@ jupyter-nbextensions-configurator==0.4.1
 kiwisolver==1.2.0
 MarkupSafe==1.1.1
 matplotlib==3.3.0
-mistune==0.8.4
+mistune==2.0.3
 mpmath==1.1.0
 nbconvert==5.6.1
 nbformat==5.0.7