diff --git a/requirements.txt b/requirements.txt
index 84517dd..7c32bcb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -22,7 +22,7 @@ jupyterlab-server==0.2.0
 kiwisolver==1.0.1
 MarkupSafe==1.1.0
 matplotlib==3.0.2
-mistune==2.0.3
+mistune==3.2.1
 nbconvert==6.5.1
 nbformat==4.4.0
 notebook==6.4.12