diff --git a/requirements.txt b/requirements.txt
index e8ca893193..546dd9d072 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -66,3 +66,5 @@ werkzeug==0.16.1
 # Uncomment the requirement for ldap3 if using ldap.
 # It is not included by default because of the GPL license conflict.
 # ldap3==2.2.4
+
+urllib3>=1.25.9 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file