diff --git a/src/bundle/RepositoryInstaller/Event/Subscriber/OrmEntitiesSchemaSubscriber.php b/src/bundle/RepositoryInstaller/Event/Subscriber/OrmEntitiesSchemaSubscriber.php
index bd420da371..8ddf981eba 100644
--- a/src/bundle/RepositoryInstaller/Event/Subscriber/OrmEntitiesSchemaSubscriber.php
+++ b/src/bundle/RepositoryInstaller/Event/Subscriber/OrmEntitiesSchemaSubscriber.php
@@ -35,20 +35,15 @@
  *
  * Tables already present in the schema are left as they are.
  */
-final class OrmEntitiesSchemaSubscriber implements EventSubscriberInterface
+final readonly class OrmEntitiesSchemaSubscriber implements EventSubscriberInterface
 {
-    private EntityManagerInterface $entityManager;
-
-    /** @var list<class-string> */
-    private array $entityClasses;
-
     /**
      * @param list<class-string> $entityClasses
      */
-    public function __construct(EntityManagerInterface $entityManager, array $entityClasses)
-    {
-        $this->entityManager = $entityManager;
-        $this->entityClasses = $entityClasses;
+    public function __construct(
+        private EntityManagerInterface $entityManager,
+        private array $entityClasses
+    ) {
     }
 
     public static function getSubscribedEvents(): array
@@ -62,9 +57,7 @@ public function onBuildSchema(SchemaBuilderEvent $event): void
     {
         $metadataFactory = $this->entityManager->getMetadataFactory();
         $classMetadata = array_map(
-            static function (string $class) use ($metadataFactory): ClassMetadata {
-                return $metadataFactory->getMetadataFor($class);
-            },
+            static fn (string $class): ClassMetadata => $metadataFactory->getMetadataFor($class),
             $this->entityClasses,
         );
 
@@ -77,9 +70,7 @@ static function (string $class) use ($metadataFactory): ClassMetadata {
         // own table, regardless of which classes were actually requested here. Only transplant the
         // tables that genuinely belong to the requested entities.
         $ownTableNames = array_map(
-            static function (ClassMetadata $metadata): string {
-                return $metadata->getTableName();
-            },
+            static fn (ClassMetadata $metadata): string => $metadata->getTableName(),
             $classMetadata,
         );
 
@@ -97,11 +88,7 @@ static function (ClassMetadata $metadata): string {
         }
 
         $ownSequenceNames = array_filter(array_map(
-            static function (ClassMetadata $metadata): ?string {
-                return isset($metadata->sequenceGeneratorDefinition['sequenceName'])
-                    ? $metadata->sequenceGeneratorDefinition['sequenceName']
-                    : null;
-            },
+            static fn (ClassMetadata $metadata): ?string => $metadata->sequenceGeneratorDefinition['sequenceName'] ?? null,
             $classMetadata,
         ));
 
@@ -129,8 +116,10 @@ static function (ClassMetadata $metadata): ?string {
      * SchemaImporter uses when building a table from a parsed Yaml array, just reading from an
      * already-built Table here instead.
      */
-    private function copyTable(Table $source, Table $target): void
-    {
+    private function copyTable(
+        Table $source,
+        Table $target
+    ): void {
         foreach ($source->getColumns() as $column) {
             $options = [
                 'length' => $column->getLength(),
@@ -170,8 +159,8 @@ private function copyTable(Table $source, Table $target): void
         foreach ($source->getForeignKeys() as $foreignKey) {
             $target->addForeignKeyConstraint(
                 $foreignKey->getForeignTableName(),
-                $foreignKey->getUnquotedLocalColumns(),
-                $foreignKey->getUnquotedForeignColumns(),
+                array_values($foreignKey->getUnquotedLocalColumns()),
+                array_values($foreignKey->getUnquotedForeignColumns()),
                 $foreignKey->getOptions(),
                 $foreignKey->getName(),
             );
diff --git a/tests/bundle/RepositoryInstaller/Event/Subscriber/OrmEntitiesSchemaSubscriberTest.php b/tests/bundle/RepositoryInstaller/Event/Subscriber/OrmEntitiesSchemaSubscriberTest.php
index 55951b01cb..cdfd5fe3c5 100644
--- a/tests/bundle/RepositoryInstaller/Event/Subscriber/OrmEntitiesSchemaSubscriberTest.php
+++ b/tests/bundle/RepositoryInstaller/Event/Subscriber/OrmEntitiesSchemaSubscriberTest.php
@@ -11,13 +11,11 @@
 use Doctrine\Common\EventManager;
 use Doctrine\DBAL\DriverManager;
 use Doctrine\DBAL\Platforms\AbstractPlatform;
-use Doctrine\DBAL\Platforms\MySQL57Platform;
-use Doctrine\DBAL\Platforms\PostgreSQL94Platform;
-use Doctrine\DBAL\Platforms\SqlitePlatform;
+use Doctrine\DBAL\Platforms\MySQLPlatform;
+use Doctrine\DBAL\Platforms\PostgreSQLPlatform;
 use Doctrine\DBAL\Schema\Column;
 use Doctrine\DBAL\Schema\Schema;
 use Doctrine\DBAL\Schema\Sequence;
-use Doctrine\DBAL\Schema\Table;
 use Doctrine\ORM\Configuration;
 use Doctrine\ORM\EntityManager;
 use Doctrine\ORM\EntityManagerInterface;
@@ -49,9 +47,10 @@ final class OrmEntitiesSchemaSubscriberTest extends TestCase
     protected function setUp(): void
     {
         $configuration = new Configuration();
-        $configuration->setMetadataDriverImpl(new SimplifiedXmlDriver([
-            __DIR__ . '/Fixtures/orm' => 'Ibexa\Tests\Bundle\RepositoryInstaller\Event\Subscriber\Fixtures\Entity',
-        ]));
+        $configuration->setMetadataDriverImpl(new SimplifiedXmlDriver(
+            [__DIR__ . '/Fixtures/orm' => 'Ibexa\Tests\Bundle\RepositoryInstaller\Event\Subscriber\Fixtures\Entity'],
+            isXsdValidationEnabled: true,
+        ));
         $configuration->setProxyDir(sys_get_temp_dir());
         $configuration->setProxyNamespace('Ibexa\Tests\Bundle\RepositoryInstaller\Event\Subscriber\Proxies');
 
@@ -77,13 +76,14 @@ public function testAddsTablesOfListedEntitiesAsSchemaToolGeneratesThem(Abstract
     }
 
     /**
-     * @return iterable<string, array{\Doctrine\DBAL\Platforms\AbstractPlatform}>
+     * @return iterable<string, array{AbstractPlatform}>
      */
     public static function providePlatforms(): iterable
     {
-        yield 'MySQL' => [new MySQL57Platform()];
-        yield 'PostgreSQL' => [new PostgreSQL94Platform()];
-        yield 'SQLite' => [new SqlitePlatform()];
+        yield 'MySQL' => [new MySQLPlatform()];
+        yield 'PostgreSQL' => [new PostgreSQLPlatform()];
+        // The SQLite platform class was renamed between DBAL 3 and 4 - let DBAL pick it.
+        yield 'SQLite' => [DriverManager::getConnection(['driver' => 'pdo_sqlite', 'memory' => true])->getDatabasePlatform()];
     }
 
     public function testAddsSequencesOfListedEntitiesAsSchemaToolGeneratesThem(): void
@@ -123,9 +123,7 @@ public function testLeavesTablesAlreadyInTheSchemaUntouched(): void
         $schema = $this->dispatch($schema);
 
         $columnNames = array_map(
-            static function (Column $column): string {
-                return $column->getName();
-            },
+            static fn (Column $column): string => $column->getName(),
             array_values($schema->getTable('test_orm_category')->getColumns()),
         );
 
@@ -138,27 +136,19 @@ private function getSchemaToolSchema(): Schema
         $metadataFactory = $this->entityManager->getMetadataFactory();
 
         return (new SchemaTool($this->entityManager))->getSchemaFromMetadata(array_map(
-            static function (string $class) use ($metadataFactory) {
-                return $metadataFactory->getMetadataFor($class);
-            },
+            static fn (string $class) => $metadataFactory->getMetadataFor($class),
             self::ENTITY_CLASSES,
         ));
     }
 
     /**
-     * @return array<string, array<string>>
+     * @return list<string>
      */
-    private function getCreateTablesSql(Schema $schema, AbstractPlatform $platform): array
-    {
-        return array_map(
-            static function (Table $table) use ($platform): array {
-                return $platform->getCreateTableSQL(
-                    $table,
-                    AbstractPlatform::CREATE_INDEXES | AbstractPlatform::CREATE_FOREIGNKEYS,
-                );
-            },
-            $schema->getTables(),
-        );
+    private function getCreateTablesSql(
+        Schema $schema,
+        AbstractPlatform $platform
+    ): array {
+        return $platform->getCreateTablesSQL($schema->getTables());
     }
 
     /**
@@ -168,12 +158,10 @@ static function (Table $table) use ($platform): array {
      */
     private function getCreateSequencesSql(Schema $schema): array
     {
-        $platform = new PostgreSQL94Platform();
+        $platform = new PostgreSQLPlatform();
 
         return array_map(
-            static function (Sequence $sequence) use ($platform): string {
-                return $platform->getCreateSequenceSQL($sequence);
-            },
+            static fn (Sequence $sequence): string => $platform->getCreateSequenceSQL($sequence),
             $schema->getSequences(),
         );
     }