diff --git a/requirements.txt b/requirements.txt
index 86c6ac6..8c6d9ea 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,7 +17,7 @@ itsdangerous==0.24
 Jinja2==2.8
 Lektor==1.2.1
 MarkupSafe==0.23
-mistune==0.7.1
+mistune==0.8.1
 ndg-httpsclient==0.4.0
 path.py==8.1.2
 pathtools==0.1.2