diff --git a/docs/requirements.txt b/docs/requirements.txt
index 0d94cbb0..f232f6da 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,3 +1,4 @@
 sphinx-rtd-theme==0.5.2
 sphinxcontrib-contentui==0.2.5
 aiohttp>=3.9.2,<4
+urllib3>=2.5.0 # not directly required, pinned by Snyk to avoid a vulnerability