diff --git a/requirements.txt b/requirements.txt
index c9a971e..ab0b64b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -42,7 +42,7 @@ lightgbm==2.2.3
 Markdown==3.0.1
 MarkupSafe==1.1.0
 matplotlib==2.2.3
-mistune==0.8.4
+mistune==2.0.3
 moviepy==1.0.0
 nbconvert==5.4.0
 nbextensions==0.1.0