diff --git a/flake.lock b/flake.lock
index defc18f..f1371b0 100644
--- a/flake.lock
+++ b/flake.lock
@@ -1,39 +1,59 @@
 {
   "nodes": {
-    "flake-utils": {
+    "flake-parts": {
+      "inputs": {
+        "nixpkgs-lib": "nixpkgs-lib"
+      },
       "locked": {
-        "lastModified": 1676283394,
-        "narHash": "sha256-XX2f9c3iySLCw54rJ/CZs+ZK6IQy7GXNY4nSOyu2QG4=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "3db36a8b464d0c4532ba1c7dda728f4576d6d073",
+        "lastModified": 1685662779,
+        "narHash": "sha256-cKDDciXGpMEjP1n6HlzKinN0H+oLmNpgeCTzYnsA2po=",
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "rev": "71fb97f0d875fd4de4994dfb849f2c75e17eb6c3",
         "type": "github"
       },
       "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "type": "github"
+        "id": "flake-parts",
+        "type": "indirect"
       }
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1676468895,
-        "narHash": "sha256-wHxF7WWlhkjI0oHaMd/u5tZ4xde1hCexmOZGVDLf5yM=",
+        "lastModified": 1687412861,
+        "narHash": "sha256-Z/g0wbL68C+mSGerYS2quv9FXQ1RRP082cAC0Bh4vcs=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "fa90359876285998d9e1877c671dc6cadaf9cb2c",
+        "rev": "e603dc5f061ca1d8a19b3ede6a8cf9c9fcba6cdc",
         "type": "github"
       },
       "original": {
         "owner": "NixOS",
-        "ref": "master",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-lib": {
+      "locked": {
+        "dir": "lib",
+        "lastModified": 1685564631,
+        "narHash": "sha256-8ywr3AkblY4++3lIVxmrWZFzac7+f32ZEhH/A8pNscI=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "4f53efe34b3a8877ac923b9350c874e3dcd5dc0a",
+        "type": "github"
+      },
+      "original": {
+        "dir": "lib",
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
         "repo": "nixpkgs",
         "type": "github"
       }
     },
     "root": {
       "inputs": {
-        "flake-utils": "flake-utils",
+        "flake-parts": "flake-parts",
         "nixpkgs": "nixpkgs"
       }
     }
diff --git a/flake.nix b/flake.nix
index 90d3045..4b53848 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,17 +1,16 @@
 {
-  inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs/master";
-    flake-utils.url = "github:numtide/flake-utils";
-  };
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
 
-  outputs = { self, nixpkgs, flake-utils }:
-    flake-utils.lib.eachDefaultSystem (system:
-      let
-        pkgs = nixpkgs.legacyPackages.${system};
-      in
-      {
-        devShell = with pkgs; pkgs.mkShell {
-          buildInputs = [ php82 ];
+  outputs = inputs@{ flake-parts, ... }:
+    flake-parts.lib.mkFlake { inherit inputs; } {
+      systems = [ "x86_64-linux" ];
+
+      perSystem = { config, self', inputs', pkgs, system, ... }: {
+        devShells = {
+          default = pkgs.mkShell {
+            buildInputs = with pkgs; [ php82 php82Packages.composer ];
+          };
         };
-      });
+      };
+    };
 }