diff --git a/nix/os/devices/steveej-t480s-work/pkg.nix b/nix/os/devices/steveej-t480s-work/pkg.nix
index fa0e20a..20f6488 100644
--- a/nix/os/devices/steveej-t480s-work/pkg.nix
+++ b/nix/os/devices/steveej-t480s-work/pkg.nix
@@ -5,4 +5,5 @@
 {
   home-manager.users.steveej = import ../../../home-manager/configuration/graphical-fullblown.nix;
   services.teamviewer.enable = true;
+  system.stateVersion = "19.09";
 }
diff --git a/nix/os/devices/steveej-t480s-work/system.nix b/nix/os/devices/steveej-t480s-work/system.nix
index ef5e466..2f0dcae 100644
--- a/nix/os/devices/steveej-t480s-work/system.nix
+++ b/nix/os/devices/steveej-t480s-work/system.nix
@@ -63,8 +63,12 @@ in {
         tcp_port = "16509"
       '';
     };
-    virtualbox.host.enable = true;
-    virtualbox.host.addNetworkInterface = true;
+
+    virtualbox.host = {
+      enable = false ;
+      addNetworkInterface = false;
+    };
+
     docker = {
       enable = true;
       extraOptions = "--experimental";
diff --git a/nix/os/devices/steveej-t480s-work/versions.nix b/nix/os/devices/steveej-t480s-work/versions.nix
index f96fccc..cb9ed1c 100644
--- a/nix/os/devices/steveej-t480s-work/versions.nix
+++ b/nix/os/devices/steveej-t480s-work/versions.nix
@@ -1,20 +1,20 @@
 {
   channelsNixosStable = {
     ref = "nixos-19.09";
-    rev = "e6d584f6dd22b587d5cdf5019f5e7dd2be370f61";
+    rev = "3a1861fcabcdf08a0c369e49b48675242ceb3aa2";
   };
   channelsNixosUnstable = {
     ref = "nixos-unstable";
-    rev = "41d921292e922a6cd1aba64259341c244d4c2cc7";
+    rev = "3140fa89c51233397f496f49014f6b23216667c2";
   };
   nixpkgsMaster = {
     url = "https://github.com/NixOS/nixpkgs/";
     ref = "master";
-    rev = "a6934e36534f8a87a78f877eee65c08fa9867ba5";
+    rev = "2ac6f1e3524b310bf94eba6ace6f9a75c9835dec";
   };
   homeManagerModule = {
     url = "https://github.com/rycee/home-manager";
     ref = "master";
-    rev = "286dd9b3088298e5a4625b517f8e72b1c62e4f74";
+    rev = "621c98f15a31e7f0c1389f69aaacd0ac267ce29e";
   };
 }