diff --git a/requirements.txt b/requirements.txt
index 8e841f941..e063b4244 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,7 +11,7 @@ httpx[http2]==0.28.1
 httpx-socks[asyncio]==0.10.0
 sniffio==1.3.1
 valkey==6.1.1
-markdown-it-py==3.0.0
+markdown-it-py==4.0.0
 tomli==2.4.0; python_version < '3.11'
 msgspec==0.20.0
 typer==0.24.1