diff --git a/.docker/base/php74/Dockerfile b/.docker/base/php74/Dockerfile
deleted file mode 100644
index b44f167..0000000
--- a/.docker/base/php74/Dockerfile
+++ /dev/null
@@ -1,21 +0,0 @@
-FROM php:7.4-fpm
-
-USER root
-
-# install system packages
-RUN apt-get update \
-    && apt-get -y install git wget \
-    && apt-get install -qqy libzip-dev libpng-dev libjpeg-dev libfreetype6-dev \
-    && apt-get clean; rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* /usr/share/doc/*
-
-# configure php packages
-RUN docker-php-ext-configure gd --with-freetype=/usr/include/ --with-jpeg=/usr/include/
-
-# install php requirements
-RUN docker-php-ext-install zip iconv gd
-
-# install xdebug
-RUN pecl install xdebug-3.1.5 \
-    && docker-php-ext-enable xdebug
-
-COPY --from=composer:2 /usr/bin/composer /usr/local/bin/composer
diff --git a/.docker/base/php80/Dockerfile b/.docker/base/php83/Dockerfile
similarity index 97%
rename from .docker/base/php80/Dockerfile
rename to .docker/base/php83/Dockerfile
index 25b0908..3f063f2 100644
--- a/.docker/base/php80/Dockerfile
+++ b/.docker/base/php83/Dockerfile
@@ -1,4 +1,4 @@
-FROM php:8.0-fpm
+FROM php:8.3-fpm
 
 USER root
 
diff --git a/.docker/development/php80/Dockerfile b/.docker/development/php80/Dockerfile
deleted file mode 100644
index 54fe96b..0000000
--- a/.docker/development/php80/Dockerfile
+++ /dev/null
@@ -1,5 +0,0 @@
-FROM pugx/poser:php80
-
-USER root
-
-WORKDIR "/application"
diff --git a/.docker/development/php74/Dockerfile b/.docker/development/php83/Dockerfile
similarity index 61%
rename from .docker/development/php74/Dockerfile
rename to .docker/development/php83/Dockerfile
index cddd459..9729fb6 100644
--- a/.docker/development/php74/Dockerfile
+++ b/.docker/development/php83/Dockerfile
@@ -1,4 +1,4 @@
-FROM pugx/poser:php74
+FROM pugx/poser:php83
 
 USER root
 
diff --git a/.github/workflows/php.yml b/.github/workflows/php.yml
index dc3580d..ee4b91b 100644
--- a/.github/workflows/php.yml
+++ b/.github/workflows/php.yml
@@ -8,7 +8,7 @@ on:
 
 jobs:
   cs-fix:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     name: PHP-CS-Fixer
     steps:
       - name: Checkout
@@ -20,7 +20,7 @@ jobs:
 
     strategy:
       matrix:
-        container: [ "php74", "php80", "php81", "php82" ]
+        container: [ "php81", "php82", "php83" ]
 
     runs-on: ubuntu-latest
     container: pugx/poser:${{ matrix.container }}
diff --git a/.php-cs-fixer.php b/.php-cs-fixer.php
index 8785899..98e099b 100644
--- a/.php-cs-fixer.php
+++ b/.php-cs-fixer.php
@@ -11,8 +11,7 @@
     ->setRules([
         '@Symfony' => true,
         '@Symfony:risky' => true,
-        '@PHP74Migration:risky' => true,
-        '@PHPUnit75Migration:risky' => true,
+        '@PHP81Migration' => true,
         'declare_strict_types' => false,
         'native_function_invocation' => ['include' => ['@all']],
         'concat_space' => ['spacing' => 'one'],
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3ba384d..36fb3c6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
+### Added
+* add compatibility to Symfony v7 and PHP 8.3
+* drop compatibility to Symfony v4 and PHP 7.4
+
 ## [v2.3.1] - 2022-02-21
 
 ### Fixed
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 7e89066..650fb98 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -36,10 +36,10 @@ composer behat
 
 ```bash
 docker-compose up --build -d
-docker-compose exec php74 composer install
-docker-compose exec php74 composer phpspec
-docker-compose exec php74 composer behat
-docker-compose exec php74 composer php-cs-fixer
+docker-compose exec php82 composer install
+docker-compose exec php82 composer phpspec
+docker-compose exec php82 composer behat
+docker-compose exec php82 composer php-cs-fixer
 ```
 
 or
diff --git a/README.md b/README.md
index 42dfa15..6f25e8a 100644
--- a/README.md
+++ b/README.md
@@ -11,10 +11,10 @@ This library is used by https://poser.pugx.org
 
 ## Dependencies
 
-* PHP 7.4 or higher
+* PHP 8.1 or higher
 * GD extension
 
-to use the library with lower php version use the tag [v1.4](https://github.com/badges/poser/tree/v1.4.0)
+you can still use the library with lower PHP versions, using the old releases
 
 ## Use as command
 
diff --git a/composer.json b/composer.json
index 58a5fe4..f8e78ad 100644
--- a/composer.json
+++ b/composer.json
@@ -32,19 +32,19 @@
         }
     ],
     "require": {
-        "php": ">=7.4",
+        "php": "^8.1",
         "ext-gd": "*",
         "ext-simplexml": "*",
-        "kartsims/easysvg": "^2.4",
-        "symfony/console": "^4.0|^5.0|^6.0"
+        "kartsims/easysvg": "^2.5",
+        "symfony/console": "^5.0 || ^6.0 || ^7.0"
     },
     "require-dev": {
-        "behat/behat": "^3.8",
-        "phpspec/phpspec": "^7.0",
-        "friends-of-phpspec/phpspec-code-coverage": "^6.0",
-        "friendsofphp/php-cs-fixer": "^3.5",
+        "behat/behat": "^3.13",
+        "phpspec/phpspec": "^7.4",
+        "friends-of-phpspec/phpspec-code-coverage": "^6.3",
+        "friendsofphp/php-cs-fixer": "^3.41",
         "moave/phpspec-data-provider-extension": "dev-feat/add-compatibility-to-php80",
-        "vimeo/psalm": "^4.3"
+        "vimeo/psalm": "^4.30"
     },
     "config": {
         "bin-dir": "bin",
@@ -60,10 +60,12 @@
         "phpspec": "bin/phpspec run --format=pretty --ansi",
         "phpspec-coverage": "bin/phpspec run -f progress -c phpspec-coverage.yml --ansi",
         "behat": "bin/behat --snippets-for",
-        "docker:build:php74": "docker build -t pugx/poser:php74 -f .docker/base/php74/Dockerfile .",
-        "docker:push:php74": "docker push pugx/poser:php74",
-        "docker:build:php80": "docker build -t pugx/poser:php80 -f .docker/base/php80/Dockerfile .",
-        "docker:push:php80": "docker push pugx/poser:php80"
+        "docker:build:php81": "docker build -t pugx/poser:php81 -f .docker/base/php81/Dockerfile .",
+        "docker:push:php81": "docker push pugx/poser:php81",
+        "docker:build:php82": "docker build -t pugx/poser:php82 -f .docker/base/php80/Dockerfile .",
+        "docker:push:php82": "docker push pugx/poser:php82",
+        "docker:build:php83": "docker build -t pugx/poser:php83 -f .docker/base/php80/Dockerfile .",
+        "docker:push:php83": "docker push pugx/poser:php83"
     },
     "extra": {
         "branch-alias": {
diff --git a/docker-compose.yml b/docker-compose.yml
index cd27901..2128dad 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,22 +1,6 @@
 version: '3.7'
 services:
 
-  php74:
-    build:
-      context: .docker/development/php74
-    working_dir: /application
-    stdin_open: true
-    volumes:
-      - .:/application:cached
-
-  php80:
-    build:
-      context: .docker/development/php80
-    working_dir: /application
-    stdin_open: true
-    volumes:
-      - .:/application:cached
-
   php81:
     build:
       context: .docker/development/php81