diff --git a/webui-requirements.txt b/webui-requirements.txt
index f6e3a995..0c3aadf7 100644
--- a/webui-requirements.txt
+++ b/webui-requirements.txt
@@ -5,3 +5,4 @@ fastapi>=0.82.0; # ReST API Framework
 jinja2 # Template engine
 orjson # JSON Serialization speedup
 uvicorn # Webserver
+h11>=0.16.0 # not directly required, pinned by Snyk to avoid a vulnerability