diff --git a/requirements.txt b/requirements.txt
index 044abb4..8b15b23 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -28,7 +28,7 @@ jupyter-core==4.1.0
 Lasagne==0.2.dev1
 MarkupSafe==0.23
 matplotlib==1.5.3
-mistune==0.7.2
+mistune==0.8.1
 natsort==5.0.1
 nbconvert==4.2.0
 nbformat==4.0.1