diff --git a/requirements.txt b/requirements.txt
index 6ce6908..c37196a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -36,7 +36,7 @@ jupyter-console==5.2.0
 jupyter-core==4.4.0
 liac-arff==2.1.1
 MarkupSafe==1.0
-mistune==0.8.3
+mistune==2.0.3
 msgpack==0.6.1
 msgpack-numpy==0.4.1
 msgpack-python==0.5.6