diff --git a/installation/system-requirements.md b/installation/system-requirements.md
index 37dd535902..55b28fff65 100644
--- a/installation/system-requirements.md
+++ b/installation/system-requirements.md
@@ -21,7 +21,7 @@ You can install UCP on-premises or on a cloud provider. To install UCP,
 all nodes must have:
 
 * Linux kernel version 3.10 or higher
-* CS Docker Engine version 1.10 or higher. Learn about the
+* CS Docker Engine version 1.12.0 or higher. Learn about the
 [operating systems supported by CS Docker Engine](https://docs.docker.com/cs-engine/install/).
 * 2.00 GB of RAM
 * 3.00 GB of available disk space
@@ -37,19 +37,19 @@ When installing UCP on a host, make sure the following ports are open:
 | Hosts              | Direction | Port                    | Purpose                                                                    |
 |:-------------------|:---------:|:------------------------|:---------------------------------------------------------------------------|
 | controllers, nodes |    in     | TCP 443  (configurable) | Web app and CLI client access to UCP.                                      |
-| controllers, nodes |    in     | TCP 2375                | Heartbeat for nodes, to ensure they are running.                           |
-| controllers        |    in     | TCP 2376 (configurable) | Swarm manager accepts requests from UCP controller.                        |
+| controllers        |    in     | TCP 2376 (configurable) | Swarm manager API Endpoint - accessed by UCP controller.					|
+| controllers, nodes |    in     | TCP 2377 (configurable) | Docker Engine Swarm Mode gRPC Port.										|
 | controllers, nodes |  in, out  | UDP 4789                | Overlay networking.                                                        |
-| controllers, nodes |  in, out  | TCP + UDP 7946          | Overlay networking.                                                        |
+| controllers, nodes |  in, out  | TCP & UDP 7946          | Overlay networking.                                                        |
 | controllers, nodes |    in     | TCP 12376               | Proxy for TLS, provides access to UCP, Swarm, and Engine.                  |
-| controller         |    in     | TCP 12379               | Internal node configuration, cluster configuration, and HA.                |
-| controller         |    in     | TCP 12380               | Internal node configuration, cluster configuration, and HA.                |
-| controller         |    in     | TCP 12381               | Proxy for TLS, provides access to UCP.                                     |
-| controller         |    in     | TCP 12382               | Manages TLS and requests from swarm manager.                               |
-| controller         |    in     | TCP 12383               | Used by the authentication storage backend.                                |
-| controller         |    in     | TCP 12384               | Used by authentication storage backend for replication across controllers. |
-| controller         |    in     | TCP 12385               | The port where the authentication API is exposed.                          |
-| controller         |    in     | TCP 12386               | Used by the authentication worker.                                         |
+| controllers         |    in     | TCP 12379               | Internal node configuration, cluster configuration, and HA.                |
+| controllers         |    in     | TCP 12380               | Internal node configuration, cluster configuration, and HA.                |
+| controllers         |    in     | TCP 12381               | Proxy for TLS, provides access to UCP.                                     |
+| controllers         |    in     | TCP 12382               | Manages TLS and requests from swarm manager.                               |
+| controllers         |    in     | TCP 12383               | Used by the authentication storage backend.                                |
+| controllers         |    in     | TCP 12384               | Used by authentication storage backend for replication across controllers. |
+| controllers         |    in     | TCP 12385               | The port where the authentication API is exposed.                          |
+| controllers         |    in     | TCP 12386               | Used by the authentication worker.                                         |
 
 ## Compatibility and maintenance lifecycle