diff --git a/.php-cs-fixer.dist.php b/.php-cs-fixer.dist.php
deleted file mode 100644
index 4324ce9..0000000
--- a/.php-cs-fixer.dist.php
+++ /dev/null
@@ -1,28 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-use PhpCsFixer\Config;
-use PhpCsFixer\Finder;
-
-return (new Config())
-    ->setRiskyAllowed(false)
-    ->setRules([
-        '@auto' => true
-    ])
-    // 💡 by default, Fixer looks for `*.php` files excluding `./vendor/` - here, you can groom this config
-    ->setFinder(
-        (new Finder())
-            // 💡 root folder to check
-            ->in(__DIR__)
-            // 💡 additional files, eg bin entry file
-            // ->append([__DIR__.'/bin-entry-file'])
-            // 💡 folders to exclude, if any
-            // ->exclude([/* ... */])
-            // 💡 path patterns to exclude, if any
-            // ->notPath([/* ... */])
-            // 💡 extra configs
-            // ->ignoreDotFiles(false) // true by default in v3, false in v4 or future mode
-            // ->ignoreVCS(true) // true by default
-    )
-;
diff --git a/composer.json b/composer.json
index 9daa1ef..c79ca24 100644
--- a/composer.json
+++ b/composer.json
@@ -18,7 +18,6 @@
         "serve": "php -S localhost:8080 -t public/"
     },
     "require": {
-	"php": "8.5.4",
         "slim/slim": "4.*",
         "slim/psr7": "^1.8",
         "php-di/slim-bridge": "^3.4"
diff --git a/flake.nix b/flake.nix
index 3d654e9..cdfc2da 100644
--- a/flake.nix
+++ b/flake.nix
@@ -14,7 +14,6 @@
           cypress
           php85
           php85Packages.composer
-          php85Packages.php-cs-fixer
           phpunit
         ];
       };