diff --git a/requirements.txt b/requirements.txt
index 951926b..5d1d5a8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -64,7 +64,7 @@ lxml==4.4.2
 MarkupSafe==1.1.1
 matplotlib==3.1.2
 mccabe==0.6.1
-mistune==0.8.4
+mistune==2.0.3
 more-itertools==8.1.0
 mpmath==1.1.0
 mysqlclient==1.4.6