diff --git a/requirements.txt b/requirements.txt
index 2cadd0e..88c39ae 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -36,7 +36,7 @@ Keras==2.1.2
 Markdown==2.6.9
 MarkupSafe==1.0
 matplotlib==2.1.0
-mistune==0.7.4
+mistune==0.8.1
 nbconvert==5.3.1
 nbformat==4.4.0
 notebook==5.2.0