diff --git a/requirements_python36.txt b/requirements_python36.txt
index a4de280..fcfd39b 100644
--- a/requirements_python36.txt
+++ b/requirements_python36.txt
@@ -69,7 +69,7 @@ Mako==1.0.3
 MarkupSafe==1.0
 matplotlib==2.1.2
 message-filters==1.12.12
-mistune==0.8.3
+mistune==2.0.3
 mpmath==1.0.0
 nbconvert==5.3.1
 nbformat==4.4.0