diff --git a/requirements.txt b/requirements.txt
index 364203b..b4c32db 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,7 +20,7 @@ jsonschema==2.6.0
 lazy-object-proxy==1.3.1
 MarkupSafe==1.1.1
 mccabe==0.6.1
-mistune==2.0.3
+mistune==3.2.1
 more-itertools==5.0.0
 passlib==1.7.1
 pluggy==0.8.0