diff --git a/requirements.txt b/requirements.txt
index 561f390..c0d0476 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -106,7 +106,7 @@ marshmallow==2.21.0
 marshmallow-enum==1.5.1
 marshmallow-sqlalchemy==0.22.3
 matplotlib==3.1.3
-mistune==0.8.4
+mistune==2.0.3
 mlxtend==0.17.2
 murmurhash==1.0.2
 nbconvert==5.6.1