diff --git a/python/docs/requirements.txt b/python/docs/requirements.txt
index 0049dfb892b48..2f193ee7fdd8b 100644
--- a/python/docs/requirements.txt
+++ b/python/docs/requirements.txt
@@ -3,3 +3,4 @@ jinja2==3.0.0
 sphinx==2.3.1
 sphinx_rtd_theme==0.4.3
 sphinxcontrib-napoleon==0.7
+protobuf>=4.25.8 # not directly required, pinned by Snyk to avoid a vulnerability