diff --git a/pip-sample/requirements.txt b/pip-sample/requirements.txt
index c8cd5e19..93d0de39 100644
--- a/pip-sample/requirements.txt
+++ b/pip-sample/requirements.txt
@@ -68,3 +68,4 @@ webencodings==0.5.1
 Werkzeug==0.14.1
 widgetsnbextension==3.4.2
 xlrd==1.1.0
+urllib3>=1.26.18 # not directly required, pinned by Snyk to avoid a vulnerability