diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 5230699..c4fa9a8 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -10,7 +10,7 @@ jobs:
             - uses: shivammathur/setup-php@v2
               with:
                   php-version: '7.2'
-                  tools: php-cs-fixer:2.13.1
+                  tools: php-cs-fixer:3.2.1
                   coverage: none
             - name: php-cs-fixer
               run: php-cs-fixer fix --dry-run --diff
@@ -22,23 +22,27 @@ jobs:
         strategy:
             fail-fast: false
             matrix:
-                sf-version: [ '^4.4', '^5.4', '^6.3' ]
-                php-version: [ '7.2', '7.3', '7.4', '8.0', '8.1', '8.2' ]
+                sf-version: [ '^5.4', '^6.4', '^7.0' ]
+                php-version: [ '7.2', '7.3', '7.4', '8.0', '8.1', '8.2', '8.3' ]
                 exclude:
-                    -   sf-version: '^4.4'
+                    -   sf-version: '^6.4'
+                        php-version: '7.2'
+                    -   sf-version: '^6.4'
+                        php-version: '7.3'
+                    -   sf-version: '^6.4'
+                        php-version: '7.4'
+                    -   sf-version: '^6.4'
                         php-version: '8.0'
-                    -   sf-version: '^4.4'
-                        php-version: '8.1'
-                    -   sf-version: '^4.4'
-                        php-version: '8.2'
-                    -   sf-version: '^6.3'
+                    -   sf-version: '^7.0'
                         php-version: '7.2'
-                    -   sf-version: '^6.3'
+                    -   sf-version: '^7.0'
                         php-version: '7.3'
-                    -   sf-version: '^6.3'
+                    -   sf-version: '^7.0'
                         php-version: '7.4'
-                    -   sf-version: '^6.3'
+                    -   sf-version: '^7.0'
                         php-version: '8.0'
+                    -   sf-version: '^7.0'
+                        php-version: '8.1'
 
         steps:
             - uses: actions/checkout@master
diff --git a/.php-cs-fixer.dist.php b/.php-cs-fixer.dist.php
new file mode 100644
index 0000000..7cbeeb5
--- /dev/null
+++ b/.php-cs-fixer.dist.php
@@ -0,0 +1,18 @@
+<?php
+
+$finder = PhpCsFixer\Finder::create()
+    ->in([__DIR__.'/Cli', __DIR__.'/Sdk']);
+
+$config = new PhpCsFixer\Config();
+$config
+    ->setRules(array(
+        '@Symfony' => true,
+        '@Symfony:risky' => true,
+        'array_syntax' => ['syntax' => 'short'],
+        'class_attributes_separation' => ['elements' => ['const' => 'one']],
+    ))
+    ->setRiskyAllowed(true)
+    ->setFinder($finder)
+;
+
+return $config;
diff --git a/.php_cs.dist b/.php_cs.dist
deleted file mode 100644
index 105aea5..0000000
--- a/.php_cs.dist
+++ /dev/null
@@ -1,14 +0,0 @@
-<?php
-
-return PhpCsFixer\Config::create()
-    ->setRules(array(
-        '@Symfony' => true,
-        '@Symfony:risky' => true,
-        'array_syntax' => ['syntax' => 'short'],
-    ))
-    ->setRiskyAllowed(true)
-    ->setFinder(
-        PhpCsFixer\Finder::create()
-            ->in([__DIR__.'/Cli', __DIR__.'/Sdk'])
-    )
-;
diff --git a/Sdk/Api.php b/Sdk/Api.php
index 368a9cf..0b94d96 100644
--- a/Sdk/Api.php
+++ b/Sdk/Api.php
@@ -31,7 +31,7 @@
 
 class Api
 {
-    public const ENDPOINT = 'https://insight.symfony.com';
+    const ENDPOINT = 'https://insight.symfony.com';
 
     private $baseUrl;
     private $httpClient;
diff --git a/Sdk/Model/Analyses.php b/Sdk/Model/Analyses.php
index b43becf..9bd815a 100644
--- a/Sdk/Model/Analyses.php
+++ b/Sdk/Model/Analyses.php
@@ -20,12 +20,16 @@ class Analyses
      * @Type("array<SensioLabs\Insight\Sdk\Model\Link>")
      * @XmlList(inline = true, entry = "link")
      */
+    #[Type("array<SensioLabs\Insight\Sdk\Model\Link>")]
+    #[XmlList(inline: true, entry: "link")]
     private $links = [];
 
     /**
      * @Type("array<SensioLabs\Insight\Sdk\Model\Analysis>")
      * @XmlList(inline = true, entry = "analysis")
      */
+    #[Type("array<SensioLabs\Insight\Sdk\Model\Analysis>")]
+    #[XmlList(inline: true, entry: "analysis")]
     private $analyses = [];
 
     /**
diff --git a/Sdk/Model/Analysis.php b/Sdk/Model/Analysis.php
index 3b1c18c..ba4d756 100644
--- a/Sdk/Model/Analysis.php
+++ b/Sdk/Model/Analysis.php
@@ -27,99 +27,124 @@ class Analysis
      * @Type("array<SensioLabs\Insight\Sdk\Model\Link>")
      * @XmlList(inline = true, entry = "link")
      */
+    #[Type("array<SensioLabs\Insight\Sdk\Model\Link>")]
+    #[XmlList(inline: true, entry: "link")]
     private $links = [];
 
     /** @Type("integer") */
+    #[Type("integer")]
     private $number;
 
     /** @Type("string") */
+    #[Type("string")]
     private $grade;
 
     /**
      * @Type("string")
      * @SerializedName("next-grade")
      */
+    #[Type("string")]
+    #[SerializedName("next-grade")]
     private $nextGrade;
 
     /** @Type("array<string>") */
+    #[Type("array<string>")]
     private $grades = [];
 
     /**
      * @Type("float")
      * @SerializedName("remediation-cost")
      */
+    #[Type("float")]
+    #[SerializedName("remediation-cost")]
     private $remediationCost;
 
     /**
      * @Type("float")
      * @SerializedName("remediation-cost-for-next-grade")
      */
+    #[Type("float")]
+    #[SerializedName("remediation-cost-for-next-grade")]
     private $remediationCostForNextGrade;
 
     /**
      * @Type("integer")
      * @SerializedName("nb-violations")
      */
+    #[Type("integer")]
+    #[SerializedName("nb-violations")]
     private $nbViolations;
 
     /**
      * @Type("DateTime")
      * @SerializedName("begin-at")
      */
+    #[Type("DateTime")]
+    #[SerializedName("begin-at")]
     private $beginAt;
 
     /**
      * @Type("DateTime")
      * @SerializedName("end-at")
      */
+    #[Type("DateTime")]
+    #[SerializedName("end-at")]
     private $endAt;
 
     /** @Type("integer") */
+    #[Type("integer")]
     private $duration;
 
     /**
      * @Type("string")
      * @SerializedName("failure-message")
      */
+    #[Type("string")]
+    #[SerializedName("failure-message")]
     private $failureMessage;
 
     /**
      * @Type("string")
      * @SerializedName("failure-code")
      */
+    #[Type("string")]
+    #[SerializedName("failure-code")]
     private $failureCode;
 
     /** @Type("boolean") */
+    #[Type("boolean")]
     private $failed;
 
     /** @Type("string") */
+    #[Type("string")]
     private $status;
 
     /**
      * @Type("string")
      * @SerializedName("status-message")
      */
+    #[Type("string")]
+    #[SerializedName("status-message")]
     private $statusMessage;
 
     /**
      * @Type("boolean")
      * @SerializedName("altered")
      */
+    #[Type("boolean")]
+    #[SerializedName("altered")]
     private $isAltered;
 
     /** @Type("SensioLabs\Insight\Sdk\Model\Violations") */
+    #[Type("SensioLabs\Insight\Sdk\Model\Violations")]
     private $violations;
 
-    /**
-     * @Type("string")
-     * @SerializedName("branch")
-     */
+    /** @Type("string") */
+    #[Type("string")]
     private $branch;
 
-    /**
-     * @Type("string")
-     * @SerializedName("reference")
-     */
+    /** @Type("string") */
+    #[Type("string")]
     private $reference;
 
     /**
diff --git a/Sdk/Model/Link.php b/Sdk/Model/Link.php
index 047e7c4..2091963 100644
--- a/Sdk/Model/Link.php
+++ b/Sdk/Model/Link.php
@@ -20,18 +20,24 @@ class Link
      * @XmlAttribute
      * @Type("string")
      */
+    #[XmlAttribute]
+    #[Type("string")]
     private $href;
 
     /**
      * @XmlAttribute
      * @Type("string")
      */
+    #[XmlAttribute]
+    #[Type("string")]
     private $rel;
 
     /**
      * @XmlAttribute
      * @Type("string")
      */
+    #[XmlAttribute]
+    #[Type("string")]
     private $type;
 
     /**
diff --git a/Sdk/Model/Project.php b/Sdk/Model/Project.php
index b80f132..5c2c72a 100644
--- a/Sdk/Model/Project.php
+++ b/Sdk/Model/Project.php
@@ -35,6 +35,7 @@ class Project
     /**
      * @Exclude()
      */
+    #[Exclude]
     public static $types = [
         self::TYPE_SYMFONY2_WEB_PROJECT => 'Symfony2 Web Project',
         self::TYPE_SYMFONY1_WEB_PROJECT => 'symfony1 Web Project',
@@ -52,45 +53,60 @@ class Project
      * @Type("array<SensioLabs\Insight\Sdk\Model\Link>")
      * @XmlList(inline = true, entry = "link")
      */
+    #[Type("array<SensioLabs\Insight\Sdk\Model\Link>")]
+    #[XmlList(inline: true, entry: "link")]
     private $links = [];
 
     /**
      * @Type("string")
      * @SerializedName("id")
      */
+    #[Type("string")]
+    #[SerializedName("id")]
     private $uuid;
 
     /** @Type("string") */
+    #[Type("string")]
     private $name;
 
     /** @Type("string") */
+    #[Type("string")]
     private $configuration;
 
     /** @Type("string") */
+    #[Type("string")]
     private $description;
 
     /** @Type("integer") */
+    #[Type("integer")]
     private $type;
 
     /**
      * @Type("string")
      * @SerializedName("repository-url")
      */
+    #[Type("string")]
+    #[SerializedName("repository-url")]
     private $repositoryUrl;
 
     /** @Type("boolean") */
+    #[Type("boolean")]
     private $private;
 
     /**
      * @Type("boolean")
      * @SerializedName("report-available")
      */
+    #[Type("boolean")]
+    #[SerializedName("report-available")]
     private $reportAvailable;
 
     /**
      * @Type("SensioLabs\Insight\Sdk\Model\Analysis")
      * @SerializedName("last-analysis")
      */
+    #[Type("SensioLabs\Insight\Sdk\Model\Analysis")]
+    #[SerializedName("last-analysis")]
     private $lastAnalysis;
 
     public function toArray()
diff --git a/Sdk/Model/Projects.php b/Sdk/Model/Projects.php
index a4ac0f6..c756179 100644
--- a/Sdk/Model/Projects.php
+++ b/Sdk/Model/Projects.php
@@ -19,36 +19,47 @@
 /**
  * @XmlRoot("projects")
  */
+#[XmlRoot("projects")]
 class Projects
 {
     /**
      * @XmlAttribute
      * @Type("integer")
      */
+    #[XmlAttribute]
+    #[Type("integer")]
     private $page;
 
     /**
      * @XmlAttribute
      * @Type("integer")
      */
+    #[XmlAttribute]
+    #[Type("integer")]
     private $total;
 
     /**
      * @XmlAttribute
      * @Type("integer")
      */
+    #[XmlAttribute]
+    #[Type("integer")]
     private $limit;
 
     /**
      * @Type("array<SensioLabs\Insight\Sdk\Model\Link>")
      * @XmlList(inline = true, entry = "link")
      */
+    #[Type("array<SensioLabs\Insight\Sdk\Model\Link>")]
+    #[XmlList(inline: true, entry: "link")]
     private $links = [];
 
     /**
      * @Type("array<SensioLabs\Insight\Sdk\Model\Project>")
      * @XmlList(inline = true, entry = "project")
      */
+    #[Type("array<SensioLabs\Insight\Sdk\Model\Project>")]
+    #[XmlList(inline: true, entry: "project")]
     private $projects = [];
 
     /**
diff --git a/Sdk/Model/Violation.php b/Sdk/Model/Violation.php
index 2c1189b..cc3bf5b 100644
--- a/Sdk/Model/Violation.php
+++ b/Sdk/Model/Violation.php
@@ -17,33 +17,43 @@
 class Violation
 {
     /** @Type("string") */
+    #[Type("string")]
     private $title;
 
     /** @Type("string") */
+    #[Type("string")]
     private $message;
 
     /** @Type("string") */
+    #[Type("string")]
     private $resource;
 
     /** @Type("integer") */
+    #[Type("integer")]
     private $line;
 
     /**
      * @Type("string")
      * @XmlAttribute
      */
+    #[Type("string")]
+    #[XmlAttribute]
     private $severity;
 
     /**
      * @Type("string")
      * @XmlAttribute
      */
+    #[Type("string")]
+    #[XmlAttribute]
     private $category;
 
     /**
      * @Type("boolean")
      * @XmlAttribute
      */
+    #[Type("boolean")]
+    #[XmlAttribute]
     private $ignored;
 
     /**
diff --git a/Sdk/Model/Violations.php b/Sdk/Model/Violations.php
index f9742e7..49fc846 100644
--- a/Sdk/Model/Violations.php
+++ b/Sdk/Model/Violations.php
@@ -20,6 +20,8 @@ class Violations implements \Countable, \IteratorAggregate
      * @Type("array<SensioLabs\Insight\Sdk\Model\Violation>")
      * @XmlList(inline = true, entry = "violation")
      */
+    #[Type("array<SensioLabs\Insight\Sdk\Model\Violation>")]
+    #[XmlList(inline: true, entry: "violation")]
     private $violations = [];
 
     public function count(): int
diff --git a/composer.json b/composer.json
index 374e24b..a08f67d 100644
--- a/composer.json
+++ b/composer.json
@@ -5,16 +5,17 @@
     "require": {
         "php": ">=7.2",
         "ext-json": "*",
-        "jms/serializer": "^3.17",
+        "doctrine/annotations": "^1.14|^2.0",
+        "jms/serializer": "^3.29",
         "psr/log": "^1.0",
-        "symfony/http-client": "^4.4|^5.4|^6.3",
-        "symfony/console": "^4.4|^5.4|^6.3",
-        "symfony/expression-language": "^4.4|^5.4|^6.3"
+        "symfony/http-client": "^5.4|^6.4|^7.0",
+        "symfony/console": "^5.4|^6.4|^7.0",
+        "symfony/expression-language": "^5.4|^6.4|^7.0"
     },
     "require-dev": {
         "monolog/monolog": "^1.4",
-        "symfony/phpunit-bridge": "^4.4|^5.4|^6.3",
-        "symfony/var-dumper": "^4.4|^5.4|^6.3"
+        "symfony/phpunit-bridge": "^5.4|^6.4|^7.0",
+        "symfony/var-dumper": "^5.4|^6.4|^7.0"
     },
     "suggest": {
         "monolog/monolog": "Will add some log capability to this library"