diff --git a/src/Kdyby/Doctrine/Diagnostics/Panel.php b/src/Kdyby/Doctrine/Diagnostics/Panel.php
index 6a524a0f..098cf969 100644
--- a/src/Kdyby/Doctrine/Diagnostics/Panel.php
+++ b/src/Kdyby/Doctrine/Diagnostics/Panel.php
@@ -90,7 +90,7 @@ class Panel implements IBarPanel, Doctrine\DBAL\Logging\SQLLogger
 	 * @param array|null $params
 	 * @param array|null $types
 	 */
-	public function startQuery($sql, array $params = NULL, array $types = NULL)
+	public function startQuery($sql, ?array $params = NULL, ?array $types = NULL)
 	{
 		Debugger::timer('doctrine');
 
@@ -559,7 +559,7 @@ public static function highlightQuery($sql)
 	 * @throws \Nette\Utils\RegexpException
 	 * @return string
 	 */
-	public static function formatQuery($query, $params, array $types = [], AbstractPlatform $platform = NULL)
+	public static function formatQuery($query, $params, array $types = [], ?AbstractPlatform $platform = NULL)
 	{
 		if ($platform === NULL) {
 			$platform = new Doctrine\DBAL\Platforms\MySqlPlatform();
diff --git a/src/Kdyby/Doctrine/EntityManager.php b/src/Kdyby/Doctrine/EntityManager.php
index 63372755..5a6a8368 100644
--- a/src/Kdyby/Doctrine/EntityManager.php
+++ b/src/Kdyby/Doctrine/EntityManager.php
@@ -221,7 +221,7 @@ public function newHydrator($hydrationMode)
 	 * @throws \Doctrine\ORM\ORMException
 	 * @return EntityManager
 	 */
-	public static function create($conn, Doctrine\ORM\Configuration $config, Doctrine\Common\EventManager $eventManager = NULL)
+	public static function create($conn, Doctrine\ORM\Configuration $config, ?Doctrine\Common\EventManager $eventManager = NULL)
 	{
 		if (!$config->getMetadataDriverImpl()) {
 			throw ORMException::missingMappingDriverImpl();