diff --git a/tests/AbstractTestCase.php b/tests/AbstractTestCase.php
index a2e3c29..721492f 100644
--- a/tests/AbstractTestCase.php
+++ b/tests/AbstractTestCase.php
@@ -15,35 +15,17 @@
 
 abstract class AbstractTestCase extends TestCase
 {
-    /**
-     * @var Connection
-     */
-    protected static $connection;
+    protected static Connection $connection;
 
-    /**
-     * @var Gateway
-     */
-    protected static $gateway;
+    protected static Gateway $gateway;
 
-    /**
-     * @var DebugLogger
-     */
-    protected static $logger;
+    protected static DebugLogger $logger;
 
-    /**
-     * @var CountryRepository
-     */
-    protected static $countryRepository;
+    protected static CountryRepository $countryRepository;
 
-    /**
-     * @var UserRepository
-     */
-    protected static $userRepository;
+    protected static UserRepository $userRepository;
 
-    /**
-     * @var EventRepository
-     */
-    protected static $eventRepository;
+    protected static EventRepository $eventRepository;
 
     /**
      * @return bool
diff --git a/tests/Resources/Mappings/GeometryMapping.php b/tests/Resources/Mappings/GeometryMapping.php
index 2cd77c2..3d6319c 100644
--- a/tests/Resources/Mappings/GeometryMapping.php
+++ b/tests/Resources/Mappings/GeometryMapping.php
@@ -13,15 +13,9 @@
  */
 class GeometryMapping implements PropertyMapping
 {
-    /**
-     * @var string
-     */
-    protected $fieldName;
+    protected string $fieldName;
 
-    /**
-     * @var bool
-     */
-    protected $isNullable;
+    protected bool $isNullable;
 
     /**
      * @param string $fieldName  The field name.