diff --git a/ansible/files/requirements.txt b/ansible/files/requirements.txt
index c8c2935..0bf5b7f 100644
--- a/ansible/files/requirements.txt
+++ b/ansible/files/requirements.txt
@@ -27,7 +27,7 @@ jupyter-core==4.4.0
 jupyterhub==0.8.1
 Mako==1.0.7
 MarkupSafe==1.0
-mistune==0.8.3
+mistune==2.0.3
 nbconvert==5.3.1
 nbformat==4.4.0
 notebook==5.4.1