diff --git a/requirements.txt b/requirements.txt
index 027a0f1..617fdef 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,3 @@
 requests>=2.8.1,<3.0.0
 requests-futures>=1.0.0,<1.1.0
+urllib3>=2.2.2 # not directly required, pinned by Snyk to avoid a vulnerability