diff --git a/requirements.txt b/requirements.txt
index 2637513..b20ab05 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,3 +6,4 @@ nose==1.3.0
 nose-cov==1.6
 requests==2.20.0
 pyjwt==1.4.0
+urllib3>=1.26.5 # not directly required, pinned by Snyk to avoid a vulnerability