diff --git a/.docker/PHP83-Dockerfile b/.docker/PHP84-Dockerfile
similarity index 93%
rename from .docker/PHP83-Dockerfile
rename to .docker/PHP84-Dockerfile
index f0eb8a8..ba9f53d 100644
--- a/.docker/PHP83-Dockerfile
+++ b/.docker/PHP84-Dockerfile
@@ -1,4 +1,4 @@
-FROM php:8.3-fpm
+FROM php:8.4-fpm
 
 RUN apt-get update
 RUN apt-get --yes --no-install-recommends install \
@@ -34,7 +34,7 @@ RUN docker-php-ext-install -j$(nproc) \
 COPY build/php/opcache.ini /usr/local/etc/php/conf.d/
 COPY build/php/custom.ini /usr/local/etc/php/conf.d/
 
-RUN pecl install xdebug-3.3.0alpha3 && docker-php-ext-enable xdebug
+RUN pecl install xdebug-3.4.0 && docker-php-ext-enable xdebug
 
 RUN php --version
 
diff --git a/docker-compose.yml b/docker-compose.yml
index 5457f40..e3adec8 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,8 +1,6 @@
 # SPDX-FileCopyrightText: 2015-2023 Artur Weigandt https://wlabs.de/kontakt
 # SPDX-License-Identifier: GPL-3.0-or-later
 
-version: "3.7"
-
 services:
     php:
         # Info to build the Docker image
@@ -10,7 +8,7 @@ services:
             # Specify where the Dockerfile is located (e.g. in the root directory of the project)
             context: .docker
             # Specify the name of the Dockerfile for changing the PHP version
-            dockerfile: PHP83-Dockerfile
+            dockerfile: PHP84-Dockerfile
         # Modifiy Ports for every project: <outside>:<inside>
         ports:
             - 8200:80