diff --git a/requirements.txt b/requirements.txt
index 1e132b2..a82fbcb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,3 +8,4 @@ sorl-thumbnail
 rollbar
 django-toolbelt
 dj-database-url
+urllib3>=2.6.3 # not directly required, pinned by Snyk to avoid a vulnerability