diff --git a/requirements.txt b/requirements.txt
index 9d85fd4..362ac18 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -31,3 +31,4 @@ typing==3.7.4.3
 websocket-client==1.4.2
 Werkzeug==2.0.3
 yarg==0.1.9
+urllib3>=2.5.0 # not directly required, pinned by Snyk to avoid a vulnerability