diff --git a/requirements.txt b/requirements.txt
index b422c25e..49a5a1ef 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ mkdocs-redirects==1.2.2
 pymdown-extensions==10.12
 mkdocs-linkcheck==1.0.6
 mdformat-gfm==0.3.7
-mdformat-mkdocs[recommended]==3.1.1
+mdformat-mkdocs[recommended]==4.0.0
 beautifulsoup4==4.12.3
 diskcache==5.6.3
 sendgrid==6.11.0