diff --git a/api-book/requirements.txt b/api-book/requirements.txt
index 413724e..953ffad 100644
--- a/api-book/requirements.txt
+++ b/api-book/requirements.txt
@@ -41,7 +41,7 @@ linkify-it-py==1.0.1
 markdown-it-py==0.6.1
 MarkupSafe==1.1.1
 mdit-py-plugins==0.2.4
-mistune==0.8.4
+mistune==2.0.3
 myst-nb==0.11.1
 myst-parser==0.13.3
 nbclient==0.5.1