diff --git a/flake.lock b/flake.lock
index 09b0b87..be416e7 100644
--- a/flake.lock
+++ b/flake.lock
@@ -2,11 +2,27 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1776548001,
-        "narHash": "sha256-ZSK0NL4a1BwVbbTBoSnWgbJy9HeZFXLYQizjb2DPF24=",
+        "lastModified": 1777428379,
+        "narHash": "sha256-ypxFOeDz+CqADEQNL72haqGjvZQdBR5Vc7pyx2JDttI=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "b12141ef619e0a9c1c84dc8c684040326f27cdcc",
+        "rev": "755f5aa91337890c432639c60b6064bb7fe67769",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-25.11",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-unstable": {
+      "locked": {
+        "lastModified": 1777578337,
+        "narHash": "sha256-Ad49moKWeXtKBJNy2ebiTQUEgdLyvGmTeykAQ9xM+Z4=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "15f4ee454b1dce334612fa6843b3e05cf546efab",
         "type": "github"
       },
       "original": {
@@ -19,6 +35,7 @@
     "root": {
       "inputs": {
         "nixpkgs": "nixpkgs",
+        "nixpkgs-unstable": "nixpkgs-unstable",
         "zen-browser": "zen-browser"
       }
     },
@@ -29,11 +46,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1775710180,
-        "narHash": "sha256-sCokvdNvl8zIzsnjgG0TN5h3RUI7GJyWW9ErfmEj0rM=",
+        "lastModified": 1777612697,
+        "narHash": "sha256-h+tXBNMDrsKbD1UnYw0IeSIT4RalHtIJ1GLOviib7/8=",
         "owner": "youwen5",
         "repo": "zen-browser-flake",
-        "rev": "2c138beb648d1cbbfae76695a8230ee04e4db25a",
+        "rev": "f9f70d14f9a57c7962c5cfe589461c1391044448",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index cbccf50..7c051f4 100644
--- a/flake.nix
+++ b/flake.nix
@@ -2,18 +2,24 @@
   description = "multi-machine nixos config";
 
   inputs = {
-    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-25.11";
+    nixpkgs-unstable.url = "github:nixos/nixpkgs/nixos-unstable";
     zen-browser = {
       url = "github:youwen5/zen-browser-flake";
       inputs.nixpkgs.follows = "nixpkgs";
     };
   };
 
-  outputs = { self, nixpkgs, ... }@inputs:
+  outputs = { self, nixpkgs, nixpkgs-unstable, ... }@inputs:
     let
+      system = "x86_64-linux";
+      pkgs-unstable = import nixpkgs-unstable {
+        inherit system;
+        config.allowUnfree = true;
+      };
       mkHost = hostname: nixpkgs.lib.nixosSystem {
-        system = "x86_64-linux";
-        specialArgs = { inherit inputs; };
+        inherit system;
+        specialArgs = { inherit inputs pkgs-unstable; };
         modules = [ ./hosts/${hostname} ];
       };
     in {