diff --git a/requirements.txt b/requirements.txt
index 6e98172..73c6383 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -90,7 +90,7 @@ locket==0.2.0
 lxml==3.7.3
 MarkupSafe==1.0
 matplotlib==2.0.2
-mistune==0.7.4
+mistune==2.0.3
 mlens==0.2.1
 mpmath==0.19
 msgpack-python==0.4.8