diff --git a/.github/workflows/php.yml b/.github/workflows/php.yml
index bb62ffe..724609b 100644
--- a/.github/workflows/php.yml
+++ b/.github/workflows/php.yml
@@ -10,10 +10,10 @@ jobs:
     strategy:
       matrix:
         include:
-          - php-version: 8.2
-            docker-image: 'anzusystems/php:3.0.0-php82-cli'
           - php-version: 8.3
-            docker-image: 'anzusystems/php:3.0.0-php83-cli'
+            docker-image: 'anzusystems/php:4.0.0-php83-cli'
+          - php-version: 8.4
+            docker-image: 'anzusystems/php:4.0.0-php84-cli'
 
     services:
       mysql:
diff --git a/Dockerfile b/Dockerfile
index c16b04b..e4229e3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM anzusystems/php:3.0.0-php83-cli
+FROM anzusystems/php:4.0.0-php84-cli
 #
 ### Basic arguments and variables
 ARG DOCKER_USER_ID
diff --git a/composer.json b/composer.json
index b9b7a0d..9045b3d 100644
--- a/composer.json
+++ b/composer.json
@@ -11,7 +11,7 @@
         }
     ],
     "require": {
-        "php": ">=8.2",
+        "php": ">=8.3",
         "ext-json": "*",
         "doctrine/common": "^3.3",
         "symfony/property-info": "^6.3|^7.0"
@@ -25,7 +25,7 @@
         "symfony/test-pack": "^1.1",
         "symfony/uid": "^6.3|^7.0",
         "symplify/easy-coding-standard": "^12.0",
-        "vimeo/psalm": "^5.16"
+        "vimeo/psalm": "^6.8"
     },
     "suggest": {
         "doctrine/orm": "Enable EntityIdHandler."
diff --git a/psalm.xml b/psalm.xml
index 8131f92..9f1c9bf 100644
--- a/psalm.xml
+++ b/psalm.xml
@@ -7,6 +7,7 @@
         usePhpDocMethodsWithoutMagicCall="true"
         allowStringToStandInForClass="false"
         memoizeMethodCallResults="true"
+        phpVersion="8.4"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xmlns="https://getpsalm.org/schema/config"
         xsi:schemaLocation="https://getpsalm.org/schema/config vendor/vimeo/psalm/config.xsd"
@@ -24,22 +25,9 @@
     <issueHandlers>
         <MoreSpecificImplementedParamType errorLevel="suppress"/>
         <RiskyTruthyFalsyComparison errorLevel="suppress"/>
+        <MissingOverrideAttribute errorLevel="suppress"/>
         <UnnecessaryVarAnnotation errorLevel="suppress"/> <!-- PHPStorm doesn't understand to generics annotations yet -->
 
-        <UnusedFunctionCall>
-            <errorLevel type="suppress">
-                <referencedFunction name="array_map"/>
-            </errorLevel>
-        </UnusedFunctionCall>
-
-        <PossiblyUndefinedMethod>
-            <errorLevel type="suppress">
-                <referencedMethod name="Symfony\Component\Config\Definition\Builder\NodeParentInterface::end"/>
-                <referencedMethod name="Symfony\Component\Config\Definition\Builder\NodeDefinition::children"/>
-                <referencedMethod name="Symfony\Component\Config\Definition\Builder\NodeDefinition::canbeenabled"/>
-            </errorLevel>
-        </PossiblyUndefinedMethod>
-
         <!-- level 3 issues - slightly lazy code writing, but provably low false-negatives -->
 
         <DeprecatedMethod errorLevel="info"/>
diff --git a/src/Handler/Handlers/ObjectHandler.php b/src/Handler/Handlers/ObjectHandler.php
index b525e72..1c2129e 100644
--- a/src/Handler/Handlers/ObjectHandler.php
+++ b/src/Handler/Handlers/ObjectHandler.php
@@ -79,6 +79,16 @@ public function deserialize(mixed $value, Metadata $metadata): object|iterable
             return $collection;
         }
         if (Type::BUILTIN_TYPE_ARRAY === $metadata->type) {
+            if ($metadata->customType || $metadata->discriminatorMap) {
+                $array = [];
+                foreach ($value as $key => $item) {
+                    /** @psalm-suppress ArgumentTypeCoercion */
+                    $array[$key] = $this->jsonDeserializer->fromArray($item, $this->getDeserializeCustomType($item, $metadata) ?? $metadata->type);
+                }
+
+                return $array;
+            }
+
             return $value;
         }
 
diff --git a/src/Metadata/Metadata.php b/src/Metadata/Metadata.php
index b10e7bc..536f5d1 100644
--- a/src/Metadata/Metadata.php
+++ b/src/Metadata/Metadata.php
@@ -24,6 +24,7 @@ public function __construct(
         public ?string $persistedName = null,
         public ?array $discriminatorMap = null,
         public ?array $orderBy = null,
+        public bool $getterSetterStrategy = true,
     ) {
     }
 }
diff --git a/src/Metadata/MetadataFactory.php b/src/Metadata/MetadataFactory.php
index 0b575de..1854804 100644
--- a/src/Metadata/MetadataFactory.php
+++ b/src/Metadata/MetadataFactory.php
@@ -15,6 +15,7 @@
 use ReflectionUnionType;
 use Symfony\Component\DependencyInjection\ParameterBag\ParameterBagInterface;
 use Symfony\Component\PropertyInfo\Type;
+use const PHP_VERSION;
 
 final class MetadataFactory
 {
@@ -130,7 +131,7 @@ private function buildMethodMetadata(ReflectionClass $reflection): array
             /** @var Serialize $attribute */
             $attribute = $attributes[0]->newInstance();
             $dataName = $attribute->serializedName
-                ?? lcfirst(preg_replace('~^[get|is]*(.+)~', '$1', $method->getName()))
+                ?? lcfirst((string) preg_replace('~^[get|is]*(.+)~', '$1', $method->getName()))
             ;
             $metadata[$dataName] = $this->getMethodMetadata($method, $attribute);
         }
@@ -171,7 +172,7 @@ private function getMethodMetadata(ReflectionMethod $method, Serialize $attribut
             $attribute->handler,
             $this->resolveCustomType($attribute),
             $attribute->strategy,
-            orderBy: $attribute->orderBy
+            orderBy: $attribute->orderBy,
         );
     }
 
@@ -201,27 +202,42 @@ private function getPropertyMetadata(ReflectionProperty $property, Serialize $at
                 }
             }
         }
-        $getter = $getterPrefix . ucfirst($property->getName());
-        $declaringClass = $property->getDeclaringClass();
-        if (false === $declaringClass->hasMethod($getter)) {
-            // fallback to "get" prefix
-            $getterFallback = 'get' . ucfirst($property->getName());
-            if (false === $declaringClass->hasMethod($getterFallback)) {
-                throw new SerializerException('Getter method ' . $getter . ' or ' . $getterFallback . ' not found in ' . $declaringClass->getName() . '.');
+        $getter = $setter = null;
+        $getterSetterStrategy = true;
+        if (version_compare(PHP_VERSION, '8.4.0', '>=') && $property->hasHooks()) {
+            $getterSetterStrategy = false;
+            /** @psalm-suppress UndefinedClass */
+            if ($property->hasHook(\PropertyHookType::Get)) {
+                $getter = $property->getName();
+            }
+            /** @psalm-suppress UndefinedClass */
+            if ($property->hasHook(\PropertyHookType::Set)) {
+                $setter = $property->getName();
             }
-
-            $getter = $getterFallback;
         }
-        $setter = 'set' . ucfirst($property->getName());
-        if (false === $declaringClass->hasMethod($setter)) {
-            // setter is required for deserialization only
-            $setter = null;
+        if ($getterSetterStrategy) {
+            $getter = $getterPrefix . ucfirst($property->getName());
+            $declaringClass = $property->getDeclaringClass();
+            if (false === $declaringClass->hasMethod($getter)) {
+                // fallback to "get" prefix
+                $getterFallback = 'get' . ucfirst($property->getName());
+                if (false === $declaringClass->hasMethod($getterFallback)) {
+                    throw new SerializerException('Getter method ' . $getter . ' or ' . $getterFallback . ' not found in ' . $declaringClass->getName() . '.');
+                }
+
+                $getter = $getterFallback;
+            }
+            $setter = 'set' . ucfirst($property->getName());
+            if (false === $declaringClass->hasMethod($setter)) {
+                // setter is required for deserialization only
+                $setter = null;
+            }
         }
 
         return new Metadata(
             $type,
             (bool) $propertyType?->allowsNull(),
-            $getter,
+            (string) $getter,
             $property->getName(),
             $setter,
             $attribute->handler,
@@ -229,7 +245,8 @@ private function getPropertyMetadata(ReflectionProperty $property, Serialize $at
             $attribute->strategy,
             $attribute->persistedName,
             $attribute->discriminatorMap,
-            orderBy: $attribute->orderBy
+            orderBy: $attribute->orderBy,
+            getterSetterStrategy: $getterSetterStrategy,
         );
     }
 
diff --git a/src/Metadata/MetadataRegistry.php b/src/Metadata/MetadataRegistry.php
index 4935b15..5e10d39 100644
--- a/src/Metadata/MetadataRegistry.php
+++ b/src/Metadata/MetadataRegistry.php
@@ -39,7 +39,7 @@ public function get(string $className): ClassMetadata
         }
         if (false === isset($this->metadata[$className])) {
             try {
-                $cachedItem = $this->appCache->getItem(self::CACHE_PREFIX . $className);
+                $cachedItem = $this->appCache->getItem($this->getCacheKey($className));
                 if ($cachedItem->isHit()) {
                     $this->metadata[$className] = $cachedItem->get();
 
@@ -55,4 +55,9 @@ public function get(string $className): ClassMetadata
 
         return $this->metadata[$className];
     }
+
+    private function getCacheKey(string $className): string
+    {
+        return self::CACHE_PREFIX . str_replace('\\', '_', $className);
+    }
 }
diff --git a/src/Service/JsonDeserializer.php b/src/Service/JsonDeserializer.php
index 2ac15f8..ac12225 100644
--- a/src/Service/JsonDeserializer.php
+++ b/src/Service/JsonDeserializer.php
@@ -93,7 +93,7 @@ private function arrayToObject(array $data, string $className): object
             }
 
             try {
-                $object->{$metadata->setter}($value);
+                $metadata->getterSetterStrategy ? $object->{$metadata->setter}($value) : $object->{$metadata->property} = $value;
             } catch (Throwable $exception) {
                 throw new SerializerException('Unable to deserialize "' . $name . '". Check type.', 0, $exception);
             }
diff --git a/src/Service/JsonSerializer.php b/src/Service/JsonSerializer.php
index 6e4c19c..bc85a0a 100644
--- a/src/Service/JsonSerializer.php
+++ b/src/Service/JsonSerializer.php
@@ -78,7 +78,7 @@ private function objectToArray(object $data, SerializationContext $context): arr
     {
         $output = [];
         foreach ($this->metadataRegistry->get($data::class)->getAll() as $name => $metadata) {
-            $value = $data->{$metadata->getter}();
+            $value = $metadata->getterSetterStrategy ? $data->{$metadata->getter}() : $data->{$metadata->property};
 
             if (null === $value && !$context->shouldSerializeNull()) {
                 continue;