diff --git a/requirements.txt b/requirements.txt
index edc3e41..ff5d57c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,7 +21,7 @@ Jinja2==2.9.6
 jsonschema==2.6.0
 Mako==1.0.7
 MarkupSafe==1.0
-mistune==0.7.4
+mistune==2.0.3
 nose==1.3.7
 psycopg2==2.7.3
 py==1.4.34