diff --git a/.cs.php b/.cs.php
index 2bba5e9..52c4c3e 100644
--- a/.cs.php
+++ b/.cs.php
@@ -19,7 +19,7 @@
             'array_syntax' => ['syntax' => 'short'],
             'cast_spaces' => ['space' => 'none'],
             'concat_space' => ['spacing' => 'one'],
-            'compact_nullable_typehint' => true,
+            'compact_nullable_type_declaration' => true,
             'declare_equal_normalize' => ['space' => 'single'],
             'general_phpdoc_annotation_remove' => [
                 'annotations' => [
@@ -36,7 +36,11 @@
             'phpdoc_order' => true, // psr-5
             'phpdoc_no_useless_inheritdoc' => false,
             'protected_to_private' => false,
-            'yoda_style' => false,
+            'yoda_style' => [
+                'equal' => false,
+                'identical' => false,
+                'less_and_greater' => false
+            ],
             'method_argument_space' => ['on_multiline' => 'ensure_fully_multiline'],
             'ordered_imports' => [
                 'sort_algorithm' => 'alpha',
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index a4bf3d5..ae39631 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -8,7 +8,7 @@ jobs:
         strategy:
             matrix:
                 operating-system: [ ubuntu-latest ]
-                php-versions: [ '8.1', '8.2' ]
+                php-versions: [ '8.1', '8.2', '8.3', '8.4' ]
         name: PHP ${{ matrix.php-versions }} Test on ${{ matrix.operating-system }}
 
         steps:
diff --git a/LICENSE b/LICENSE
index bf7a9a3..bfcf021 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2023 odan
+Copyright (c) 2025 odan
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/composer.json b/composer.json
index c3c4185..45e5230 100644
--- a/composer.json
+++ b/composer.json
@@ -10,13 +10,13 @@
     ],
     "homepage": "https://github.com/selective-php/image-type",
     "require": {
-        "php": "^8.1"
+        "php": "8.1.* || 8.2.* || 8.3.* || 8.4.*"
     },
     "require-dev": {
         "friendsofphp/php-cs-fixer": "^3",
-        "phpstan/phpstan": "^1",
+        "phpstan/phpstan": "^2",
         "phpunit/phpunit": "^10",
-        "squizlabs/php_codesniffer": "^3"
+        "squizlabs/php_codesniffer": "^4"
     },
     "autoload": {
         "psr-4": {
@@ -34,12 +34,10 @@
     },
     "scripts": {
         "cs:check": [
-            "@putenv PHP_CS_FIXER_IGNORE_ENV=1",
-            "php-cs-fixer fix --dry-run --format=txt --verbose --diff --config=.cs.php --ansi"
+            "php-cs-fixer fix --dry-run --format=txt --verbose --diff --config=.cs.php --ansi --allow-unsupported-php-version=yes"
         ],
         "cs:fix": [
-            "@putenv PHP_CS_FIXER_IGNORE_ENV=1",
-            "php-cs-fixer fix --config=.cs.php --ansi --verbose"
+            "php-cs-fixer fix --config=.cs.php --ansi --verbose --allow-unsupported-php-version=yes"
         ],
         "sniffer:check": "phpcs --standard=phpcs.xml",
         "sniffer:fix": "phpcbf --standard=phpcs.xml",
@@ -51,6 +49,9 @@
             "@stan",
             "@test"
         ],
-        "test:coverage": "php -d xdebug.mode=coverage -r \"require 'vendor/bin/phpunit';\" -- --configuration phpunit.xml --do-not-cache-result --colors=always --coverage-clover build/logs/clover.xml --coverage-html build/coverage"
+        "test:coverage": [
+            "@putenv XDEBUG_MODE=coverage",
+            "phpunit --configuration phpunit.xml --do-not-cache-result --colors=always --display-warnings --display-deprecations --coverage-clover build/coverage/clover.xml --coverage-html build/coverage --coverage-text"
+        ]
     }
 }