diff --git a/.github/workflows/php.yml b/.github/workflows/php.yaml
similarity index 88%
rename from .github/workflows/php.yml
rename to .github/workflows/php.yaml
index a70b2c1..7f7b9db 100644
--- a/.github/workflows/php.yml
+++ b/.github/workflows/php.yaml
@@ -8,7 +8,7 @@ jobs:
     strategy:
       fail-fast: true
       matrix:
-        php: [7.2, 7.3, 7.4]
+        php: [7.2, 7.3, 7.4, 8.1, 8.2, 8.3]
 
     name: PHP ${{ matrix.php }}
 
@@ -16,10 +16,10 @@ jobs:
     - uses: actions/checkout@v1
 
     - name: Setup PHP version
-      uses: shivammathur/setup-php@v1
+      uses: shivammathur/setup-php@v2
       with:
         php-version: ${{ matrix.php }}
-        extension-csv: mbstring
+        extension-csv: mbst ring
         coverage: none
 
     - name: Check PHP version
diff --git a/composer.json b/composer.json
index 3f6312d..ff2b79f 100644
--- a/composer.json
+++ b/composer.json
@@ -12,14 +12,14 @@
     "license": "MIT",
     "homepage": "https://github.com/fetzi/phpspec-watcher",
     "require": {
-        "php": "^7.2",
+        "php": "^7.2 || ^8.0",
         "clue/stdio-react": "^2.3",
         "jolicode/jolinotif": "^2.0.",
         "react/event-loop": "^1.1",
-        "symfony/console": "^4.0 || ^5.0",
-        "symfony/finder": "^4.0 || ^5.0",
-        "symfony/process": "^4.0 || ^5.0",
-        "symfony/yaml": "^4.0 || ^5.0"
+        "symfony/console": "^4.0 || ^5.0 || ^6.0 || ^7.0",
+        "symfony/finder": "^4.0 || ^5.0 || ^6.0 || ^7.0",
+        "symfony/process": "^4.0 || ^5.0 || ^6.0 || ^7.0",
+        "symfony/yaml": "^4.0 || ^5.0 || ^6.0 || ^7.0"
     },
     "require-dev": {
         "phpunit/phpunit": "^8.4",
diff --git a/src/Commands/InitCommand.php b/src/Commands/InitCommand.php
index 06cc374..07e013e 100644
--- a/src/Commands/InitCommand.php
+++ b/src/Commands/InitCommand.php
@@ -16,7 +16,7 @@ protected function configure()
             ->setDescription('initializes the phpspec watcher configuration file in the current working directory.');
     }
 
-    protected function execute(InputInterface $input, OutputInterface $output)
+    protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $output = new SymfonyStyle($input, $output);
 
diff --git a/src/Commands/WatchCommand.php b/src/Commands/WatchCommand.php
index cb8fbbb..b348610 100644
--- a/src/Commands/WatchCommand.php
+++ b/src/Commands/WatchCommand.php
@@ -19,7 +19,7 @@ protected function configure()
             ->setDescription('Watches for file changes and triggers phpspec tests');
     }
 
-    protected function execute(InputInterface $input, OutputInterface $output)
+    protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $output = new SymfonyStyle($input, $output);
         $this->displayInfo($output);