diff --git a/requirements.txt b/requirements.txt
index 080dacb..1e37a0d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -49,7 +49,7 @@ jupyter-core==4.3.0
 lockfile==0.12.2
 Mako==1.0.7
 MarkupSafe==1.0
-mistune==0.7.4
+mistune==2.0.3
 msgpack-python==0.4.8
 MySQL-python==1.2.5
 nbconvert==5.3.1