diff --git a/lib/macosSystem.nix b/lib/macosSystem.nix
index ad83cebe..976e9464 100644
--- a/lib/macosSystem.nix
+++ b/lib/macosSystem.nix
@@ -17,7 +17,11 @@ in
       darwin-modules
       ++ [
         ({lib, ...}: {
-          nixpkgs.pkgs = import nixpkgs-darwin {inherit system;};
+          nixpkgs.pkgs = import nixpkgs-darwin {
+            inherit system; # refer the `system` parameter form outer scope recursively
+            # To use chrome, we need to allow the installation of non-free software
+            config.allowUnfree = true;
+          };
         })
       ]
       ++ (
diff --git a/modules/darwin/nix-core.nix b/modules/darwin/nix-core.nix
index f2647450..0ff35ac5 100644
--- a/modules/darwin/nix-core.nix
+++ b/modules/darwin/nix-core.nix
@@ -12,12 +12,6 @@
   #
   ###################################################################################
 
-  # Allow unfree packages
-  nixpkgs.config.allowUnfree = true;
-
-  # Auto upgrade the nix-daemon service.
-  services.nix-daemon.enable = true;
-
   # Disable auto-optimise-store because of this issue:
   #   https://github.com/NixOS/nix/issues/7273
   # "error: cannot link '/nix/store/.tmp-link-xxxxx-xxxxx' to '/nix/store/.links/xxxx': File exists"
diff --git a/modules/darwin/system.nix b/modules/darwin/system.nix
index c6e071fb..cdb9d9a3 100644
--- a/modules/darwin/system.nix
+++ b/modules/darwin/system.nix
@@ -17,7 +17,7 @@
 ###################################################################################
 {
   # Add ability to used TouchID for sudo authentication
-  security.pam.enableSudoTouchIdAuth = true;
+  security.pam.services.sudo_local.touchIdAuth = true;
 
   time.timeZone = "Asia/Shanghai";