diff --git a/flake.nix b/flake.nix
index 920e915..0f67592 100644
--- a/flake.nix
+++ b/flake.nix
@@ -91,11 +91,10 @@
           ./machine/stagirite
         ];
       };
-      unfolder = nixpkgs-2305.lib.nixosSystem {
+      unfolder = nixpkgs-2405.lib.nixosSystem {
         system = "x86_64-linux";
         modules = [
           self.nixosModules.beatific
-          (pinNixpkgs nixpkgs-2305)
           ./machine/unfolder
         ];
       };
diff --git a/machine/unfolder/default.nix b/machine/unfolder/default.nix
index da40204..a709dfc 100644
--- a/machine/unfolder/default.nix
+++ b/machine/unfolder/default.nix
@@ -35,8 +35,8 @@
     desktopManager.gnome.enable = true;
 
     # keymap configuration
-    layout = "us";
-    xkbVariant = "";
+    xkb.layout = "us";
+    xkb.variant = "";
   };
 
   # Enable sound with pipewire.
@@ -99,7 +99,7 @@
   services.printing.drivers = [ pkgs.hplip ];
   services.avahi = {
     enable = true;
-    nssmdns = true;
+    nssmdns4 = true;
     openFirewall = true;
   };