diff --git a/requirements.txt b/requirements.txt
index 1ac58d50..a41656ad 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -35,7 +35,7 @@ markupsafe==2.1.1; python_version >= "3.7"
 matplotlib-inline==0.1.3; python_version >= "3.7"
 matplotlib==3.5.1; python_version >= "3.7"
 mdurl==0.1.2; python_version >= "3.7" and python_full_version >= "3.7.0"
-mistune==0.8.4; python_version >= "3.7"
+mistune==2.0.4; python_version >= "3.7"
 nbclient==0.6.7; python_full_version >= "3.7.0" and python_version >= "3.7"
 nbconvert==6.5.1; python_version >= "3.7"
 nbformat==5.4.0; python_full_version >= "3.7.0" and python_version >= "3.7"