diff --git a/README.md b/README.md
index eb0fbe6..49b03e9 100644
--- a/README.md
+++ b/README.md
@@ -49,19 +49,15 @@ Check out [modules/examples](https://github.com/LnL7/nix-darwin/tree/master/modu
 ```nix
 { pkgs, ... }:
 {
-
   # List packages installed in system profile. To search by name, run:
   # $ nix-env -qaP | grep wget
   environment.systemPackages =
     [ pkgs.nix-repl
     ];
 
-  # Create /etc/bashrc that loads the nix-darwin environment.
-  programs.bash.enable = true;
-
-  # Recreate /run/current-system symlink after boot.
-  services.activate-system.enable = true;
-
+  # Auto upgrade nix package and the daemon service.
+  services.nix-daemon.enable = true;
+  nix.package = pkgs.nix;
 }
 ```