diff --git a/requirements.txt b/requirements.txt
index 8083502..4cb074a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ jedi==0.13.3
 Jinja2==2.11.3
 jsonschema==3.0.1
 MarkupSafe==1.1.1
-mistune==0.8.4
+mistune==2.0.3
 numpy==1.16.2
 pandas==0.24.2
 pandocfilters==1.4.2