diff --git a/requirements.txt b/requirements.txt
index ac3338d..30c39c2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -29,7 +29,7 @@ Jinja2==2.7.3
 jsonschema==2.5.1
 lxml==3.6.0
 MarkupSafe==0.23
-mistune==0.7
+mistune==0.8.1
 mpmath==0.19
 MySQL-python==1.2.5
 nose==1.3.7