diff --git a/requirements.txt b/requirements.txt
index 4d615e0..7460ce1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -113,7 +113,7 @@ marshmallow-jsonapi==0.15.1
 matplotlib==2.2.0
 maxminddb==1.3.0
 mccabe==0.6.1
-mistune==0.7.2
+mistune==0.8.1
 mock==2.0.0
 nbconvert==4.1.0
 nbformat==4.0.1