diff --git a/doc-requirements.txt b/doc-requirements.txt
index 28ee5654..0d4f6575 100644
--- a/doc-requirements.txt
+++ b/doc-requirements.txt
@@ -5,3 +5,4 @@ reuse
 setuptools>=65.5.1 # not directly required, pinned by Snyk to avoid a vulnerability
 sphinx
 sphinx_rtd_theme
+urllib3>=2.2.2 # not directly required, pinned by Snyk to avoid a vulnerability