diff --git a/requirements.txt b/requirements.txt
index 30b3028eb6..b231651f35 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,3 +16,4 @@ requests
 SQLAlchemy>=1.4.1
 tornado>=5.1
 traitlets>=4.3.2
+urllib3>=2.6.3 # not directly required, pinned by Snyk to avoid a vulnerability