diff --git a/flake.lock b/flake.lock
index 2cd35787..34acd639 100644
--- a/flake.lock
+++ b/flake.lock
@@ -2,16 +2,18 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1702539185,
-        "narHash": "sha256-KnIRG5NMdLIpEkZTnN5zovNYc0hhXjAgv6pfd5Z4c7U=",
+        "lastModified": 1718160348,
+        "narHash": "sha256-9YrUjdztqi4Gz8n3mBuqvCkMo4ojrA6nASwyIKWMpus=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "aa9d4729cbc99dabacb50e3994dcefb3ea0f7447",
+        "rev": "57d6973abba7ea108bac64ae7629e7431e0199b6",
         "type": "github"
       },
       "original": {
-        "id": "nixpkgs",
-        "type": "indirect"
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
       }
     },
     "root": {
diff --git a/flake.nix b/flake.nix
index dc4b3fc6..bd332b3e 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,9 +1,14 @@
 {
   description = "wolf stream";
+  inputs = {
+    # nixpkgs.url = "github:NixOS/nixpkgs/9957cd48326fe8dbd52fdc50dd2502307f188b0d";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+  };
 
-  outputs = { self, nixpkgs }:
+  outputs = inputs@{ self,... }:
     let
-      pkgs = nixpkgs.legacyPackages.x86_64-linux;
+    system = "x86_64-linux";
+      pkgs = import inputs.nixpkgs { inherit system; };
       deps = {
         boost-json_src = pkgs.fetchFromGitHub {
           owner = "boostorg";