diff --git a/requirements.txt b/requirements.txt
index 1b74d14a7..f6ca2675c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,3 +17,4 @@ requests==2.20.0
 requests-toolbelt==0.8.0
 responses==0.9.0
 validators==0.12.2
+urllib3>=1.26.5 # not directly required, pinned by Snyk to avoid a vulnerability