diff --git a/mybot/requirements.txt b/mybot/requirements.txt
index 3ef2b35..e790251 100644
--- a/mybot/requirements.txt
+++ b/mybot/requirements.txt
@@ -41,7 +41,7 @@ jupyterlab-pygments==0.1.2
 jupyterlab-server==2.8.1
 MarkupSafe==2.0.1
 matplotlib-inline==0.1.3
-mistune==0.8.4
+mistune==2.0.3
 multidict==5.1.0
 nbclassic==0.3.2
 nbclient==0.5.4