diff --git a/run/markdown-preview/renderer/requirements.txt b/run/markdown-preview/renderer/requirements.txt
index 84339fcd1409..ca05169c8226 100644
--- a/run/markdown-preview/renderer/requirements.txt
+++ b/run/markdown-preview/renderer/requirements.txt
@@ -1,4 +1,4 @@
 Flask==2.0.1
 gunicorn==20.1.0
 Markdown==3.3.4
-bleach==3.3.1
+bleach==4.0.0