diff --git a/requirements.txt b/requirements.txt
index c584047..b94b3ef 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -48,7 +48,7 @@ MarkupSafe==1.1.0
 matplotlib==2.2.3
 mccabe==0.6.1
 mercurial==4.8.2
-mistune==0.8.4
+mistune==2.0.3
 mysql-connector-python==8.0.16
 MySQL-python==1.2.5
 mysqlclient==1.3.10