diff --git a/SECURITY.md b/SECURITY.md
index 668ea8a..5e321e5 100644
--- a/SECURITY.md
+++ b/SECURITY.md
@@ -28,6 +28,7 @@
 |--------------|--------------|------------------------|--------|
 | 2181 | `storm.zookeeper.port` | Nimbus, Supervisors, and Worker processes | ZooKeeper |
 | 6627 | `nimbus.thrift.port` | Storm clients, Supervisors, and UI | Nimbus |
+| 6628 | `supervisor.thrift.port` | Nimbus | Supervisors |
 | 8080 | `ui.port` | Client Web Browsers | UI |
 | 8000 | `logviewer.port` | Client Web Browsers | Logviewer |
 | 3772 | `drpc.port` | External DRPC Clients | DRPC |
diff --git a/docs/SECURITY.md b/docs/SECURITY.md
index 74a67ef..6e4d7e1 100644
--- a/docs/SECURITY.md
+++ b/docs/SECURITY.md
@@ -36,6 +36,7 @@
 |--------------|--------------|------------------------|--------|
 | 2181 | `storm.zookeeper.port` | Nimbus, Supervisors, and Worker processes | Zookeeper |
 | 6627 | `nimbus.thrift.port` | Storm clients, Supervisors, and UI | Nimbus |
+| 6628 | `supervisor.thrift.port` | Nimbus | Supervisors |
 | 8080 | `ui.port` | Client Web Browsers | UI |
 | 8000 | `logviewer.port` | Client Web Browsers | Logviewer |
 | 3772 | `drpc.port` | External DRPC Clients | DRPC |