diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 066c1fe..62179a2 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -19,6 +19,7 @@ jobs:
         php-version:
           - "8.2"
           - "8.3"
+          - "8.4"
 
     steps:
       - name: "Checkout"
diff --git a/composer.json b/composer.json
index f5cbfad..e171ebd 100644
--- a/composer.json
+++ b/composer.json
@@ -13,17 +13,17 @@
         "php": "^8.2"
     },
     "require-dev": {
-        "brainbits/phpcs-standard": "^7.0.1",
+        "brainbits/phpcs-standard": "^7.0.2",
         "brainbits/phpstan-rules": "^3.1.2",
-        "ergebnis/phpstan-rules": "^2.2.0",
+        "ergebnis/phpstan-rules": "^2.5.2",
         "thecodingmachine/phpstan-safe-rule": "^1.2.0",
         "thecodingmachine/phpstan-strict-rules": "^1.0.0",
-        "phpstan/phpstan-phpunit": "^1.4.0",
-        "squizlabs/php_codesniffer": "^3.10.3",
-        "phpstan/phpstan": "^1.12.7",
-        "phpstan/phpstan-strict-rules": "^1.6.1",
-        "phpunit/phpunit": "^11.4.3",
-        "rector/rector": "^1.2.9"
+        "phpstan/phpstan-phpunit": "^1.4.2",
+        "squizlabs/php_codesniffer": "^3.11.3",
+        "phpstan/phpstan": "^1.12.19",
+        "phpstan/phpstan-strict-rules": "^1.6.2",
+        "phpunit/phpunit": "^11.5.10",
+        "rector/rector": "^1.2.10"
     },
     "autoload": {
         "psr-4": {