diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 35e8f5a..cc42ace 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -9,7 +9,7 @@ jobs:
             -   uses: actions/checkout@v3
             -   uses: shivammathur/setup-php@v2
                 with:
-                    php-version: 8.0
+                    php-version: 8.2
                     coverage: none
             -   uses: ramsey/composer-install@v2
             -   id: set-php-versions
diff --git a/composer.json b/composer.json
index a14c082..8ce79d5 100644
--- a/composer.json
+++ b/composer.json
@@ -22,18 +22,18 @@
     },
     "require": {
         "php": "^8.0",
-        "cuyz/valinor": "^0.13",
+        "cuyz/valinor": "^1.5",
         "sensio/framework-extra-bundle": "^6.2",
         "symfony/event-dispatcher": "^5.4 || ^6.0",
         "symfony/http-kernel": "^5.4 || ^6.0"
     },
     "require-dev": {
         "myonlinestore/coding-standard": "^3.1",
-        "myonlinestore/php-devtools": "^0.3.0",
+        "myonlinestore/php-devtools": "^0.4",
         "phpunit/phpunit": "^9.5",
         "psalm/plugin-phpunit": "^0.16.1",
-        "psalm/plugin-symfony": "^3.1",
+        "psalm/plugin-symfony": "^4.0",
         "roave/infection-static-analysis-plugin": "^1.18",
-        "vimeo/psalm": "^4.23"
+        "vimeo/psalm": "^4.30"
     }
 }
diff --git a/src/Symfony/HttpKernel/Exception/JsonApiProblem.php b/src/Symfony/HttpKernel/Exception/JsonApiProblem.php
index c38ef95..dc5a1f4 100644
--- a/src/Symfony/HttpKernel/Exception/JsonApiProblem.php
+++ b/src/Symfony/HttpKernel/Exception/JsonApiProblem.php
@@ -4,7 +4,7 @@
 namespace MyOnlineStore\ApiTools\Symfony\HttpKernel\Exception;
 
 use CuyZ\Valinor\Mapper\MappingError;
-use CuyZ\Valinor\Mapper\Tree\Message\MessagesFlattener;
+use CuyZ\Valinor\Mapper\Tree\Message\Messages;
 use Symfony\Component\HttpKernel\Exception\HttpException;
 
 final class JsonApiProblem extends HttpException
@@ -47,7 +47,7 @@ public static function fromValinorMappingError(
         int $statusCode = 422
     ): self {
         $errors = [];
-        $flattenedMessages = (new MessagesFlattener($mappingError->node()))->errors();
+        $flattenedMessages = Messages::flattenFromNode($mappingError->node());
 
         foreach ($flattenedMessages as $message) {
             $node = $message->node();
diff --git a/src/Symfony/Request/ParamConverter/ValinorParamConverter.php b/src/Symfony/Request/ParamConverter/ValinorParamConverter.php
index 7edadb4..62e7366 100644
--- a/src/Symfony/Request/ParamConverter/ValinorParamConverter.php
+++ b/src/Symfony/Request/ParamConverter/ValinorParamConverter.php
@@ -5,7 +5,7 @@
 
 use CuyZ\Valinor\Cache\FileSystemCache;
 use CuyZ\Valinor\Mapper\MappingError;
-use CuyZ\Valinor\Mapper\Tree\Message\ThrowableMessage;
+use CuyZ\Valinor\Mapper\Tree\Message\MessageBuilder;
 use CuyZ\Valinor\MapperBuilder;
 use MyOnlineStore\ApiTools\Symfony\HttpKernel\Exception\JsonApiProblem;
 use Sensio\Bundle\FrameworkExtraBundle\Configuration\ParamConverter;
@@ -28,7 +28,7 @@ public function apply(Request $request, ParamConverter $configuration): bool
                 $configuration->getName(),
                 $this->getMapperBuilder()
                     ->mapper()
-                    ->map($this->getClass(), $this->getData($request, $configuration))
+                    ->map($this->getClass(), $this->getData($request, $configuration)),
             );
         } catch (MappingError $mappingError) {
             throw JsonApiProblem::fromValinorMappingError('Invalid Request', 'Invalid data provided.', $mappingError);
@@ -58,13 +58,17 @@ abstract protected function getData(Request $request, ParamConverter $configurat
     protected function getMapperBuilder(): MapperBuilder
     {
         $mapperBuilder = (new MapperBuilder())
-            ->filterExceptions(static function (\Throwable $exception) {
-                if ($exception instanceof InvalidArgumentException) {
-                    return ThrowableMessage::from($exception);
-                }
+            ->filterExceptions(
+                /** @psalm-pure  */
+                static function (\Throwable $exception) {
+                    if ($exception instanceof InvalidArgumentException) {
+                        /** @psalm-suppress ImpureMethodCall */
+                        return MessageBuilder::from($exception);
+                    }
 
-                throw $exception;
-            });
+                    throw $exception;
+                },
+            );
 
         if (null !== $this->valinorCacheDir) {
             $mapperBuilder = $mapperBuilder->withCache(new FileSystemCache($this->valinorCacheDir));
diff --git a/tests/Symfony/Request/ParamConverter/StubId.php b/tests/Symfony/Request/ParamConverter/StubId.php
index 5b0c09b..65f7a3c 100644
--- a/tests/Symfony/Request/ParamConverter/StubId.php
+++ b/tests/Symfony/Request/ParamConverter/StubId.php
@@ -7,11 +7,13 @@
 
 final class StubId
 {
+    /** @psalm-pure */
     private function __construct(
         private string $id,
     ) {
     }
 
+    /** @psalm-pure */
     public static function fromString(string $id): self
     {
         Assert::stringNotEmpty($id);
diff --git a/tests/Symfony/Request/ParamConverter/StubValinorBodyJsonConverter.php b/tests/Symfony/Request/ParamConverter/StubValinorBodyJsonConverter.php
index e942a5b..9747766 100644
--- a/tests/Symfony/Request/ParamConverter/StubValinorBodyJsonConverter.php
+++ b/tests/Symfony/Request/ParamConverter/StubValinorBodyJsonConverter.php
@@ -24,6 +24,9 @@ protected function getData(Request $request, ParamConverter $configuration): Jso
     protected function getMapperBuilder(): MapperBuilder
     {
         return parent::getMapperBuilder()
-            ->registerConstructor(static fn (string $id): StubId => StubId::fromString($id));
+            ->registerConstructor(
+                /** @psalm-pure  */
+                static fn (string $id): StubId => StubId::fromString($id)
+            );
     }
 }