diff --git a/requirements.txt b/requirements.txt
index ca0c369..d46a347 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -33,7 +33,7 @@ marshmallow-enum==1.5.1; python_version >= "3.6"
 marshmallow==3.13.0; python_version >= "3.6"
 matplotlib-inline==0.1.3; python_version >= "3.7"
 matplotlib==3.4.3; python_version >= "3.7"
-mistune==0.8.4; python_version >= "3.7"
+mistune==2.0.3; python_version >= "3.7"
 mypy-extensions==0.4.3; python_version >= "3.6"
 nbclient==0.5.4; python_full_version >= "3.6.1" and python_version >= "3.7"
 nbconvert==6.1.0; python_version >= "3.7"