diff --git a/proxy-support/requirements.txt b/proxy-support/requirements.txt
index 023ec63..3ba0659 100644
--- a/proxy-support/requirements.txt
+++ b/proxy-support/requirements.txt
@@ -1,2 +1,3 @@
 requests
-flask
\ No newline at end of file
+flask
+urllib3>=2.6.3 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file