diff --git a/requirements.txt b/requirements.txt
index 0b1f2dc5..8dcf920f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -34,7 +34,7 @@ ldap3==2.9.1
 libsass==0.21.0
 MarkupSafe==2.0.1
 matplotlib==3.4.3
-mistune==0.8.4
+mistune==2.0.3
 numpy==1.21.2
 ocflib
 paramiko==2.7.2