diff --git a/python3/requirements.txt b/python3/requirements.txt
index 1b184e8..87a1783 100644
--- a/python3/requirements.txt
+++ b/python3/requirements.txt
@@ -3,3 +3,4 @@ twilio
 yagmail
 git+https://github.com/charlierguo/gmail
 pyjwt>=2.4.0 # not directly required, pinned by Snyk to avoid a vulnerability
+urllib3>=2.6.0 # not directly required, pinned by Snyk to avoid a vulnerability