diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 8f656ad9..ab33b008 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -12,19 +12,9 @@ jobs:
             fail-fast: false
             matrix:
                 php:
-                    - '8.0'
                     - '8.1'
                 symfony-versions: [false]
                 include:
-                    -   description: 'Symfony 4.4'
-                        php: '8.0'
-                        symfony-versions: 4.4.*
-                    -   description: 'Symfony 5.4'
-                        php: '8.0'
-                        symfony-versions: 5.4.*
-                    -   description: 'Symfony 6.0'
-                        php: '8.0'
-                        symfony-versions: 6.0.*
                     -   description: 'Symfony 5.4'
                         php: '8.1'
                         symfony-versions: 5.4.*
diff --git a/composer.json b/composer.json
index b9fd0052..c8d6e0a3 100644
--- a/composer.json
+++ b/composer.json
@@ -20,27 +20,27 @@
     ],
 
     "require": {
-        "php": "^8.0",
+        "php": "^8.1",
         "fakerphp/faker": "^1.10",
         "myclabs/deep-copy": "^1.10",
         "sebastian/comparator": "^3.0 || ^4.0",
-        "symfony/property-access": "^4.4 || ^5.4 || ^6.0",
-        "symfony/yaml": "^4.4 || ^5.4 || ^6.0"
+        "symfony/property-access": "^5.4 || ^6.0",
+        "symfony/yaml": "^5.4 || ^6.0"
     },
     "require-dev": {
         "bamarni/composer-bin-plugin": "^1.4.1",
         "phpspec/prophecy": "^1.6",
         "phpspec/prophecy-phpunit": "^2.0",
         "phpunit/phpunit": "^9.3",
-        "symfony/config": "^4.4 || ^5.4 || ^6.0",
-        "symfony/dependency-injection": "^4.4 || ^5.4 || ^6.0",
-        "symfony/finder": "^4.4 || ^5.4 || ^6.0",
-        "symfony/http-kernel": "^4.4 || ^5.4 || ^6.0",
+        "symfony/config": "^5.4 || ^6.0",
+        "symfony/dependency-injection": "^5.4 || ^6.0",
+        "symfony/finder": "^5.4 || ^6.0",
+        "symfony/http-kernel": "^5.4 || ^6.0",
         "symfony/phpunit-bridge": "^5.4 || ^6.0",
-        "symfony/var-dumper": "^4.4 || ^5.4 || ^6.0"
+        "symfony/var-dumper": "^5.4 || ^6.0"
     },
     "conflict": {
-        "symfony/framework-bundle": "<4.4 || >=5.0.0,<5.2.0"
+        "symfony/framework-bundle": "<5.4.0"
     },
 
     "autoload": {
diff --git a/vendor-bin/infection/composer.json b/vendor-bin/infection/composer.json
index 033b2fef..c0da3ad0 100644
--- a/vendor-bin/infection/composer.json
+++ b/vendor-bin/infection/composer.json
@@ -5,6 +5,11 @@
     },
     "config": {
         "bin-dir": "bin",
-        "sort-packages": true
+        "sort-packages": true,
+        "allow-plugins": {
+            "infection/extension-installer": true,
+            "wikimedia/composer-merge-plugin": true,
+            "theofidry/composer-inheritance-plugin": true
+        }
     }
 }
diff --git a/vendor-bin/profiling/composer.json b/vendor-bin/profiling/composer.json
index 69c308a0..a5c0acfc 100644
--- a/vendor-bin/profiling/composer.json
+++ b/vendor-bin/profiling/composer.json
@@ -7,6 +7,10 @@
     },
     "config": {
         "bin-dir": "bin",
-        "sort-packages": true
+        "sort-packages": true,
+        "allow-plugins": {
+            "wikimedia/composer-merge-plugin": true,
+            "theofidry/composer-inheritance-plugin": true
+        }
     }
 }
diff --git a/vendor-bin/symfony/composer.json b/vendor-bin/symfony/composer.json
index 0a698a98..5066cb7e 100644
--- a/vendor-bin/symfony/composer.json
+++ b/vendor-bin/symfony/composer.json
@@ -5,6 +5,10 @@
     },
     "config": {
         "bin-dir": "bin",
-        "sort-packages": true
+        "sort-packages": true,
+        "allow-plugins": {
+            "wikimedia/composer-merge-plugin": true,
+            "theofidry/composer-inheritance-plugin": true
+        }
     }
 }