diff --git a/phpstan.neon b/phpstan.neon
index bd1d26c4..8356ffd0 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -30,3 +30,4 @@ parameters:
 	exceptions:
 		uncheckedExceptionRegexes:
 			- '#Exception#'
+	treatPhpDocTypesAsCertain: false
diff --git a/src/Application/ApplicationGetter.php b/src/Application/ApplicationGetter.php
index cc9f4692..44952a41 100755
--- a/src/Application/ApplicationGetter.php
+++ b/src/Application/ApplicationGetter.php
@@ -3,6 +3,7 @@
 namespace kissj\Application;
 
 use DI\Bridge\Slim\Bridge;
+use DI\Container;
 use DI\ContainerBuilder;
 use kissj\Session\RedisSessionHandler;
 use kissj\Settings\Settings;
@@ -11,6 +12,9 @@
 
 class ApplicationGetter
 {
+    /**
+     * @return App<Container>
+     */
     public function getApp(
         string $envPath = __DIR__.'/../../',
         string $envFilename = '.env',
diff --git a/src/Application/Middleware.php b/src/Application/Middleware.php
index 87ce201c..96ac5c0d 100755
--- a/src/Application/Middleware.php
+++ b/src/Application/Middleware.php
@@ -4,6 +4,7 @@
 
 namespace kissj\Application;
 
+use DI\Container;
 use kissj\ErrorHandlerGetter;
 use kissj\Middleware\EventInfoMiddleware;
 use kissj\Middleware\LocalizationResolverMiddleware;
@@ -21,6 +22,10 @@
 
 class Middleware
 {
+    /**
+     * @param App<Container> $app
+     * @return App<Container>
+     */
     public function addMiddlewaresInto(App $app): App
     {
         // CONTENT LENGTH
diff --git a/src/Application/Route.php b/src/Application/Route.php
index 974a50a1..4ef9e946 100755
--- a/src/Application/Route.php
+++ b/src/Application/Route.php
@@ -4,6 +4,7 @@
 
 namespace kissj\Application;
 
+use DI\Container;
 use kissj\Deal\DealController;
 use kissj\Entry\EntryController;
 use kissj\ParticipantVendor\ParticipantVendorController;
@@ -36,6 +37,10 @@
 
 class Route
 {
+    /**
+     * @param App<Container> $app
+     * @return App<Container>
+     */
     public function addRoutesInto(App $app): App
     {
         $app->redirect($this->getBasePathSlashPrefixed($app), $app->getBasePath() . '/v2/kissj/events', 301);
@@ -373,6 +378,9 @@ public function addRoutesInto(App $app): App
         return $app;
     }
 
+    /**
+     * @param App<Container> $app
+     */
     private function getBasePathSlashPrefixed(App $app): string
     {
         $basePath = $app->getBasePath();