diff --git a/test/rules/requirements.txt b/test/rules/requirements.txt
index 0057c226a169..861eb861615e 100644
--- a/test/rules/requirements.txt
+++ b/test/rules/requirements.txt
@@ -4,3 +4,4 @@ regex
 bsdiff4
 python-Levenshtein
 tldextract
+urllib3>=2.6.3 # not directly required, pinned by Snyk to avoid a vulnerability