diff --git a/.github/workflows/php.yaml b/.github/workflows/php.yaml
index 0cc82e8..5907d93 100644
--- a/.github/workflows/php.yaml
+++ b/.github/workflows/php.yaml
@@ -24,6 +24,7 @@ jobs:
                     - '8.1'
                     - '8.2'
                     - '8.3'
+                    - '8.4'
                 dependencies:
                     - 'lowest'
                     - 'highest'
diff --git a/composer.json b/composer.json
index 831244e..e5711bc 100644
--- a/composer.json
+++ b/composer.json
@@ -37,17 +37,18 @@
     "require": {
         "php": ">=8.1",
         "composer-runtime-api": "^2.0",
-        "dragonmantank/cron-expression": "^3.3.2",
+        "dragonmantank/cron-expression": "^3.4.0",
         "laravel/serializable-closure": "^1.2.2",
         "psr/log": "^2.0 || ^3.0",
-        "symfony/config": "^5.4.9 || ^6.4.0 || ^7.1.0",
-        "symfony/console": "^5.4.9 || ^6.4.0 || ^7.1.0",
-        "symfony/dependency-injection": "^5.4.9 || ^6.4.0 || ^7.1.0",
-        "symfony/filesystem": "^5.4.9 || ^6.4.0 || ^7.1.0",
-        "symfony/lock": "^5.4.9 || ^6.4.0 || ^7.1.0",
-        "symfony/mailer": "^5.4.9 || ^6.4.0 || ^7.1.0",
-        "symfony/process": "^5.4.9 || ^6.4.0 || ^7.1.0",
-        "symfony/yaml": "^5.4.9 || ^6.4.0 || ^7.1.0"
+        "symfony/config": "^5.4.40 || ^6.4.10 || ^7.1.0",
+        "symfony/console": "^5.4.40 || ^6.4.10 || ^7.1.0",
+        "symfony/dependency-injection": "^5.4.40 || ^6.4.10 || ^7.1.0",
+        "symfony/filesystem": "^5.4.40 || ^6.4.10 || ^7.1.0",
+        "symfony/lock": "^5.4.40 || ^6.4.10 || ^7.1.0",
+        "symfony/mailer": "^5.4.40 || ^6.4.10 || ^7.1.0",
+        "symfony/process": "^5.4.40 || ^6.4.10 || ^7.1.0",
+        "symfony/string": "^5.4.40 || ^6.4.10 || ^7.1.0",
+        "symfony/yaml": "^5.4.40 || ^6.4.10 || ^7.1.0"
     },
     "require-dev": {
         "ext-json": "*",
@@ -57,9 +58,9 @@
         "phpstan/phpstan": "1.8.6",
         "phpstan/phpstan-phpunit": "1.1.1",
         "phpstan/phpstan-strict-rules": "1.4.4",
-        "phpunit/phpunit": "9.5.25",
-        "symfony/error-handler": "^5.4.9 || ^6.4.0 || ^7.1.0",
-        "symfony/phpunit-bridge": "^5.4.9 || ^6.4.0 || ^7.1.0"
+        "phpunit/phpunit": "9.6.21",
+        "symfony/error-handler": "^5.4.40 || ^6.4.10 || ^7.1.0",
+        "symfony/phpunit-bridge": "^5.4.40 || ^6.4.10 || ^7.1.0"
     },
     "minimum-stability": "beta",
     "prefer-stable": true,