diff --git a/backend/requirements.txt b/backend/requirements.txt
index a95decf..a63684f 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -40,7 +40,7 @@ kiwisolver==1.2.0
 Markdown==3.2.1
 MarkupSafe==1.1.1
 matplotlib==3.2.1
-mistune==0.8.4
+mistune==2.0.3
 nbconvert==5.6.1
 nbformat==5.0.6
 numpy==1.18.1