diff --git a/src/LiveComponent/src/LiveComponentHydrator.php b/src/LiveComponent/src/LiveComponentHydrator.php
index bd79380b0fb..c11b3252a0f 100644
--- a/src/LiveComponent/src/LiveComponentHydrator.php
+++ b/src/LiveComponent/src/LiveComponentHydrator.php
@@ -18,10 +18,12 @@
 use Symfony\Component\PropertyAccess\PropertyAccessorInterface;
 use Symfony\Component\PropertyInfo\Extractor\ReflectionExtractor;
 use Symfony\Component\PropertyInfo\PropertyInfoExtractor;
-use Symfony\Component\PropertyInfo\Type;
+use Symfony\Component\PropertyInfo\Type as LegacyType;
 use Symfony\Component\Serializer\Exception\ExceptionInterface as SerializerExceptionInterface;
 use Symfony\Component\Serializer\Normalizer\DenormalizerInterface;
 use Symfony\Component\Serializer\Normalizer\NormalizerInterface;
+use Symfony\Component\TypeInfo\Type\BuiltinType;
+use Symfony\Component\TypeInfo\Type\ObjectType;
 use Symfony\UX\LiveComponent\Attribute\AsLiveComponent;
 use Symfony\UX\LiveComponent\Attribute\LiveProp;
 use Symfony\UX\LiveComponent\Exception\HydrationException;
@@ -245,6 +247,7 @@ public function hydrateValue(mixed $value, LivePropMetadata $propMetadata, objec
             return $parentObject->{$propMetadata->hydrateMethod()}($value);
         }
 
+        $collectionValueType = $propMetadata->collectionValueType();
         if ($propMetadata->useSerializerForHydration()) {
             if (!interface_exists(DenormalizerInterface::class)) {
                 throw new \LogicException(sprintf('The LiveProp "%s" on component "%s" has "useSerializerForHydration: true", but the Serializer component is not installed. Try running "composer require symfony/serializer".', $propMetadata->getName(), $parentObject::class));
@@ -256,10 +259,12 @@ public function hydrateValue(mixed $value, LivePropMetadata $propMetadata, objec
                 throw new \LogicException(sprintf('The LiveProp "%s" on component "%s" has "useSerializerForHydration: true", but the given serializer does not implement DenormalizerInterface.', $propMetadata->getName(), $parentObject::class));
             }
 
-            if ($propMetadata->collectionValueType()) {
-                $builtInType = $propMetadata->collectionValueType()->getBuiltinType();
-                if (Type::BUILTIN_TYPE_OBJECT === $builtInType) {
-                    $type = $propMetadata->collectionValueType()->getClassName().'[]';
+            if ($collectionValueType instanceof BuiltinType || $collectionValueType instanceof ObjectType) {
+                $type = $collectionValueType->asNonNullable().'[]';
+            } elseif ($collectionValueType instanceof LegacyType) {
+                $builtInType = $collectionValueType->getBuiltinType();
+                if (LegacyType::BUILTIN_TYPE_OBJECT === $builtInType) {
+                    $type = $collectionValueType->getClassName().'[]';
                 } else {
                     $type = $builtInType.'[]';
                 }
@@ -274,8 +279,10 @@ public function hydrateValue(mixed $value, LivePropMetadata $propMetadata, objec
             return $this->serializer->denormalize($value, $type, 'json', $propMetadata->serializationContext());
         }
 
-        if ($propMetadata->collectionValueType() && Type::BUILTIN_TYPE_OBJECT === $propMetadata->collectionValueType()->getBuiltinType()) {
-            $collectionClass = $propMetadata->collectionValueType()->getClassName();
+        if ($collectionValueType instanceof ObjectType
+            || $collectionValueType instanceof LegacyType && LegacyType::BUILTIN_TYPE_OBJECT === $collectionValueType->getBuiltinType()
+        ) {
+            $collectionClass = $collectionValueType->getClassName();
             foreach ($value as $key => $objectItem) {
                 $value[$key] = $this->hydrateObjectValue($objectItem, $collectionClass, true, $propMetadata->getFormat(), $parentObject::class, sprintf('%s.%s', $propMetadata->getName(), $key), $parentObject);
             }
@@ -448,8 +455,11 @@ private function dehydrateValue(mixed $value, LivePropMetadata $propMetadata, ob
         }
 
         if (\is_array($value)) {
-            if ($propMetadata->collectionValueType() && Type::BUILTIN_TYPE_OBJECT === $propMetadata->collectionValueType()->getBuiltinType()) {
-                $collectionClass = $propMetadata->collectionValueType()->getClassName();
+            $collectionValueType = $propMetadata->collectionValueType();
+            if ($collectionValueType instanceof ObjectType
+                || $collectionValueType instanceof LegacyType && LegacyType::BUILTIN_TYPE_OBJECT === $collectionValueType->getBuiltinType()
+            ) {
+                $collectionClass = $collectionValueType->getClassName();
                 foreach ($value as $key => $objectItem) {
                     if (!$objectItem instanceof $collectionClass) {
                         throw new \LogicException(sprintf('The LiveProp "%s" on component "%s" is an array. We determined the array is full of %s objects, but at least on key had a different value of %s', $propMetadata->getName(), $parentObject::class, $collectionClass, get_debug_type($objectItem)));
diff --git a/src/LiveComponent/src/Metadata/LiveComponentMetadataFactory.php b/src/LiveComponent/src/Metadata/LiveComponentMetadataFactory.php
index 37c68f1a2dd..f03edaf287f 100644
--- a/src/LiveComponent/src/Metadata/LiveComponentMetadataFactory.php
+++ b/src/LiveComponent/src/Metadata/LiveComponentMetadataFactory.php
@@ -12,7 +12,11 @@
 namespace Symfony\UX\LiveComponent\Metadata;
 
 use Symfony\Component\PropertyInfo\PropertyTypeExtractorInterface;
-use Symfony\Component\PropertyInfo\Type;
+use Symfony\Component\PropertyInfo\Type as LegacyType;
+use Symfony\Component\TypeInfo\Type\BuiltinType;
+use Symfony\Component\TypeInfo\Type\CollectionType;
+use Symfony\Component\TypeInfo\Type\IntersectionType;
+use Symfony\Component\TypeInfo\Type\UnionType;
 use Symfony\Contracts\Service\ResetInterface;
 use Symfony\UX\LiveComponent\Attribute\LiveProp;
 use Symfony\UX\TwigComponent\ComponentFactory;
@@ -79,26 +83,42 @@ public function createLivePropMetadata(string $className, string $propertyName,
             throw new \LogicException(sprintf('Union or intersection types are not supported for LiveProps. You may want to change the type of property %s in %s.', $property->getName(), $property->getDeclaringClass()->getName()));
         }
 
-        $infoTypes = $this->propertyTypeExtractor->getTypes($className, $propertyName) ?? [];
+        if (method_exists($this->propertyTypeExtractor, 'getType')) {
+            $infoType = $this->propertyTypeExtractor->getType($className, $propertyName);
+            $isTypeBuiltIn = $type?->isBuiltin() ?? ($infoType instanceof BuiltinType);
+            $isTypeNullable = $type?->allowsNull() ?? $infoType?->isNullable() ?? true;
 
-        $collectionValueType = null;
-        foreach ($infoTypes as $infoType) {
-            if ($infoType->isCollection()) {
-                foreach ($infoType->getCollectionValueTypes() as $valueType) {
-                    $collectionValueType = $valueType;
-                    break;
+            $infoType = $infoType?->asNonNullable();
+
+            $collectionValueType = null;
+            if ($infoType instanceof CollectionType) {
+                $collectionValueType = $infoType->getCollectionValueType()->asNonNullable();
+                if ($collectionValueType instanceof UnionType || $collectionValueType instanceof IntersectionType) {
+                    [$collectionValueType] = $collectionValueType->getTypes();
                 }
             }
-        }
-
-        if (null === $type && null === $collectionValueType && isset($infoTypes[0])) {
-            $infoType = Type::BUILTIN_TYPE_OBJECT === $infoTypes[0]->getBuiltinType() ? $infoTypes[0]->getClassName() : $infoTypes[0]->getBuiltinType();
-            $isTypeBuiltIn = null === $infoTypes[0]->getClassName();
-            $isTypeNullable = $infoTypes[0]->isNullable();
         } else {
-            $infoType = $type?->getName();
-            $isTypeBuiltIn = $type?->isBuiltin() ?? false;
-            $isTypeNullable = $type?->allowsNull() ?? true;
+            $infoTypes = $this->propertyTypeExtractor->getTypes($className, $propertyName) ?? [];
+
+            $collectionValueType = null;
+            foreach ($infoTypes as $infoType) {
+                if ($infoType->isCollection()) {
+                    foreach ($infoType->getCollectionValueTypes() as $valueType) {
+                        $collectionValueType = $valueType;
+                        break;
+                    }
+                }
+            }
+
+            if (null === $type && null === $collectionValueType && isset($infoTypes[0])) {
+                $infoType = LegacyType::BUILTIN_TYPE_OBJECT === $infoTypes[0]->getBuiltinType() ? $infoTypes[0]->getClassName() : $infoTypes[0]->getBuiltinType();
+                $isTypeBuiltIn = null === $infoTypes[0]->getClassName();
+                $isTypeNullable = $infoTypes[0]->isNullable();
+            } else {
+                $infoType = $type?->getName();
+                $isTypeBuiltIn = $type?->isBuiltin() ?? false;
+                $isTypeNullable = $type?->allowsNull() ?? true;
+            }
         }
 
         return new LivePropMetadata(
diff --git a/src/LiveComponent/src/Metadata/LivePropMetadata.php b/src/LiveComponent/src/Metadata/LivePropMetadata.php
index 1878a159b03..efeeb38d352 100644
--- a/src/LiveComponent/src/Metadata/LivePropMetadata.php
+++ b/src/LiveComponent/src/Metadata/LivePropMetadata.php
@@ -11,7 +11,8 @@
 
 namespace Symfony\UX\LiveComponent\Metadata;
 
-use Symfony\Component\PropertyInfo\Type;
+use Symfony\Component\PropertyInfo\Type as LegacyType;
+use Symfony\Component\TypeInfo\Type;
 use Symfony\UX\LiveComponent\Attribute\LiveProp;
 
 /**
@@ -27,7 +28,7 @@ public function __construct(
         private ?string $typeName,
         private bool $isBuiltIn,
         private bool $allowsNull,
-        private ?Type $collectionValueType,
+        private Type|LegacyType|null $collectionValueType,
     ) {
     }
 
@@ -99,7 +100,7 @@ public function serializationContext(): array
         return $this->liveProp->serializationContext();
     }
 
-    public function collectionValueType(): ?Type
+    public function collectionValueType(): Type|LegacyType|null
     {
         return $this->collectionValueType;
     }