diff --git a/venv_requirements.txt b/venv_requirements.txt
index 381d5c7..7a0500f 100644
--- a/venv_requirements.txt
+++ b/venv_requirements.txt
@@ -20,7 +20,7 @@ jupyter-core==4.5.0
 kiwisolver==1.0.1
 MarkupSafe==1.1.1
 matplotlib==3.0.0
-mistune==0.8.4
+mistune==2.0.3
 nbconvert==5.5.0
 nbformat==4.4.0
 notebook==5.7.8