diff --git a/nixos/configuration.nix b/nixos/configuration.nix
index af7d9b0..42755c1 100644
--- a/nixos/configuration.nix
+++ b/nixos/configuration.nix
@@ -22,8 +22,6 @@
   services.nfs.server.enable = true;
   services.vmwareGuest.enable = true;
 
-  # The NixOS release to be compatible with for stateful data such as databases.
-  system.nixos.stateVersion = "18.09";
   programs.fish.enable = true;
   programs.tmux.enable = true;
 
@@ -47,4 +45,8 @@
     "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPVcSD8T9m7xuSRWrhEDEUvPrP8hxYW0WndYjTjtCjY3 itpartner@k0-0"
   ];
 
+  # The NixOS release to be compatible with for stateful data such as databases.
+  system.stateVersion = "18.09";
+  system.autoUpgrade.enable = false;
+
 }