diff --git a/windows/deployment/do/delivery-optimization-endpoints.md b/windows/deployment/do/delivery-optimization-endpoints.md
index 2dfd4d8e9e..3bc2a48d9b 100644
--- a/windows/deployment/do/delivery-optimization-endpoints.md
+++ b/windows/deployment/do/delivery-optimization-endpoints.md
@@ -38,3 +38,4 @@ Use the table below to reference any particular content types or services endpoi
 | *.do.dsp.mp.microsoft.com |  HTTP / 80 </br> HTTPs / 443 | Microsoft Connected Cache -> Delivery Optimization Services communication | [Complete list](../do/waas-delivery-optimization-faq.yml) of endpoints for Delivery Optimization only.  | Connected Cache Managed in Azure |
 | *.azure-devices.net, *.global.azure-devices-provisioning.net, *.azurecr.io, *.blob.core.windows.net, *.mcr.microsoft.com, github.com | HTTPs / 443 | IoT Edge / IoT Hub communication| [Complete list](/azure/iot-hub/iot-hub-devguide-protocols) of Azure IoT Hub communication protocols and ports. [Azure IoT Guide](/azure/iot-hub/iot-hub-devguide-endpoints) to understanding Azure IoT Hub endpoints. | Connected Cache Managed in Azure |
 | *.ubuntu.com, api.snapcraft.io | HTTP / 80 </br> HTTPs / 443 | Ubuntu package updates | Used to deploy Connected Cache to Windows host machines. | Connected Cache Managed in Azure |
+| packages.microsoft.com | HTTP / 80 </br> HTTPs / 443 | Microsoft package updates | Used to deploy Connected Cache to Windows and Linux host machines. | Connected Cache Managed in Azure |