diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 0056435..16708c0 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -17,7 +17,7 @@ jobs:
       - name: Setup PHP with PECL extension
         uses: shivammathur/setup-php@v2
         with:
-          php-version: 8.3
+          php-version: 8.4
       - uses: actions/checkout@v7
       - uses: actions/cache@v6
         with:
diff --git a/Dockerfile b/Dockerfile
index f7a4983..bfc98b0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 ARG BUILD_STAGE=prod
 
-FROM certbot/dns-cloudflare:v5.1.0 AS base
+FROM certbot/dns-cloudflare:v5.9.0 AS base
 # find version here: https://releasealert.dev/dockerhub/_/docker
 ARG DOCKER_VERSION=29.0.4
 # find version here: https://github.com/nginx-proxy/docker-gen/releases
@@ -26,18 +26,18 @@ RUN apk add --update curl \
 FROM base AS dev
 
 RUN apk add --update \
-    php83 \
-    php83-json \
-    php83-pecl-yaml \
-    php83-curl \
-    php83-dom \
-    php83-pdo \
-    php83-simplexml \
-    php83-tokenizer \
-    php83-xml \
-    php83-xmlwriter \
-    php83-posix \
-    php83-ctype \
+    php84 \
+    php84-json \
+    php84-pecl-yaml \
+    php84-curl \
+    php84-dom \
+    php84-pdo \
+    php84-simplexml \
+    php84-tokenizer \
+    php84-xml \
+    php84-xmlwriter \
+    php84-posix \
+    php84-ctype \
     file \
     composer \
     git \
@@ -54,10 +54,10 @@ RUN git config --global --add safe.directory /app
 FROM base AS prod
 
 RUN apk add --update \
-    php83 \
-    php83-json \
-    php83-pecl-yaml \
-    php83-curl \
+    php84 \
+    php84-json \
+    php84-pecl-yaml \
+    php84-curl \
     composer \
   && rm -rf /var/cache/apk/*
 
diff --git a/composer.json b/composer.json
index 2220418..0690af2 100644
--- a/composer.json
+++ b/composer.json
@@ -3,7 +3,7 @@
   "license": "MIT",
   "type": "project",
   "require": {
-    "php": "~8.3.0",
+    "php": "~8.4.0",
     "ext-curl": "*",
     "ext-yaml": "*",
     "symfony/config": "^7.4.22",
@@ -40,7 +40,7 @@
     },
     "optimize-autoloader": true,
     "platform": {
-      "php": "8.3.12"
+      "php": "8.4.0"
     },
     "process-timeout": 0,
     "sort-packages": true
diff --git a/composer.lock b/composer.lock
index 6b5064b..0c64be8 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "90d337cce3d78fe4c1ad0ac73ea0770d",
+    "content-hash": "b65a70f3b5f57a998e8ada57de2ad6be",
     "packages": [
         {
             "name": "psr/container",
@@ -8119,13 +8119,13 @@
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {
-        "php": "~8.3.0",
+        "php": "~8.4.0",
         "ext-curl": "*",
         "ext-yaml": "*"
     },
     "platform-dev": {},
     "platform-overrides": {
-        "php": "8.3.12"
+        "php": "8.4.0"
     },
     "plugin-api-version": "2.9.0"
 }
diff --git a/src/Command/NotifyCommand.php b/src/Command/NotifyCommand.php
index d8c4fb5..c8faaa8 100644
--- a/src/Command/NotifyCommand.php
+++ b/src/Command/NotifyCommand.php
@@ -70,6 +70,6 @@ protected function execute(InputInterface $input, OutputInterface $output): int
 
     public function lock(): LockInterface
     {
-        return (new LockFactory(new FlockStore()))->createLock('notify-cmd-execution');
+        return new LockFactory(new FlockStore())->createLock('notify-cmd-execution');
     }
 }
diff --git a/src/Dto/DomainList.php b/src/Dto/DomainList.php
index 8526dfc..74724e7 100644
--- a/src/Dto/DomainList.php
+++ b/src/Dto/DomainList.php
@@ -63,7 +63,7 @@ public function __toString(): string
     public static function fromArray(array $domainStrings): DomainList
     {
         $domains = array_map(static fn(string $domain): Domain => new Domain($domain), $domainStrings);
-        return (new self(...$domains))->sort();
+        return new self(...$domains)->sort();
     }
 
     public function getWildCardDomainList(): DomainList