diff --git a/Documentation/sphinx/requirements.txt b/Documentation/sphinx/requirements.txt
index 2c573541ab712f..cc18f7bd537c08 100644
--- a/Documentation/sphinx/requirements.txt
+++ b/Documentation/sphinx/requirements.txt
@@ -2,3 +2,4 @@
 jinja2<3.1
 sphinx_rtd_theme
 Sphinx==2.4.4
+urllib3>=2.5.0 # not directly required, pinned by Snyk to avoid a vulnerability