diff --git a/.github/workflows/php.yml b/.github/workflows/php.yml
index b737a5f..6d336ed 100644
--- a/.github/workflows/php.yml
+++ b/.github/workflows/php.yml
@@ -55,12 +55,12 @@ jobs:
             - name: Prepare functional testcases
               run: composer bootstrap-test-environment
 
-            - name: Run functional tests
-              run: composer phpunit -- Tests/Functional --log-junit var/junit.xml
-
             - name: Linting code
               run: composer lint
 
+            - name: Run functional tests
+              run: composer phpunit -- Tests/Functional --log-junit var/junit.xml
+
     php-cs-fixer:
         name: Run php-cs-fixer
         runs-on: ubuntu-18.04
diff --git a/Controller/HeadlessWebsiteController.php b/Controller/HeadlessWebsiteController.php
index ba58526..9308f7e 100644
--- a/Controller/HeadlessWebsiteController.php
+++ b/Controller/HeadlessWebsiteController.php
@@ -17,6 +17,7 @@
 use JMS\Serializer\SerializerInterface;
 use Sulu\Bundle\HeadlessBundle\Content\StructureResolverInterface;
 use Sulu\Bundle\HttpCacheBundle\CacheLifetime\CacheLifetimeEnhancer;
+use Sulu\Bundle\HttpCacheBundle\CacheLifetime\CacheLifetimeEnhancerInterface;
 use Sulu\Bundle\PreviewBundle\Preview\Preview;
 use Sulu\Component\Content\Compat\PageInterface;
 use Sulu\Component\Content\Compat\StructureInterface;
@@ -53,8 +54,9 @@ public function indexAction(
             $response->headers->set('Content-Type', 'application/json');
         }
 
-        if (!$preview && $this->getCacheTimeLifeEnhancer()) {
-            $this->getCacheTimeLifeEnhancer()->enhance($response, $structure);
+        $cacheLifetimeEnhancer = $this->getCacheLifetimeEnhancer();
+        if (!$preview && $cacheLifetimeEnhancer) {
+            $cacheLifetimeEnhancer->enhance($response, $structure);
         }
 
         return $response;
@@ -117,16 +119,20 @@ public static function getSubscribedServices(): array
         $subscribedServices = parent::getSubscribedServices();
         $subscribedServices['sulu_headless.structure_resolver'] = StructureResolverInterface::class;
         $subscribedServices['jms_serializer'] = SerializerInterface::class;
+        $subscribedServices['sulu_http_cache.cache_lifetime.enhancer'] = '?' . CacheLifetimeEnhancerInterface::class;
 
         return $subscribedServices;
     }
 
-    protected function getCacheTimeLifeEnhancer(): ?CacheLifetimeEnhancer
+    protected function getCacheLifetimeEnhancer(): ?CacheLifetimeEnhancer
     {
         if (!$this->has('sulu_http_cache.cache_lifetime.enhancer')) {
             return null;
         }
 
-        return $this->get('sulu_http_cache.cache_lifetime.enhancer');
+        /** @var CacheLifetimeEnhancer $cacheLifetimeEnhancer */
+        $cacheLifetimeEnhancer = $this->get('sulu_http_cache.cache_lifetime.enhancer');
+
+        return $cacheLifetimeEnhancer;
     }
 }
diff --git a/Tests/Functional/Controller/responses/headless_website__test_index.json b/Tests/Functional/Controller/responses/headless_website__test_index.json
index a400bba..dfcd455 100644
--- a/Tests/Functional/Controller/responses/headless_website__test_index.json
+++ b/Tests/Functional/Controller/responses/headless_website__test_index.json
@@ -35,7 +35,7 @@
             "categories": [],
             "tags": [],
             "images": [],
-            "segment": null,
+            "segments": [],
             "icon": [],
             "audience_targeting_groups": []
         }
diff --git a/Tests/Functional/Controller/responses/navigation__get_excerpt.json b/Tests/Functional/Controller/responses/navigation__get_excerpt.json
index c401e24..450294a 100644
--- a/Tests/Functional/Controller/responses/navigation__get_excerpt.json
+++ b/Tests/Functional/Controller/responses/navigation__get_excerpt.json
@@ -31,7 +31,7 @@
                     "categories": [],
                     "audience_targeting_groups": [],
                     "tags": [],
-                    "segment": "",
+                    "segments": [],
                     "icon": [],
                     "images": []
                 },
@@ -67,7 +67,7 @@
                     "categories": [],
                     "audience_targeting_groups": [],
                     "tags": [],
-                    "segment": "",
+                    "segments": [],
                     "icon": [
                         {
                             "id": "@integer@",
diff --git a/phpstan.neon b/phpstan.neon
index 4115f66..b26ea37 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -18,5 +18,6 @@ parameters:
     symfony:
         container_xml_path: %rootDir%/../../../Tests/Application/var/cache/admin/dev/Sulu_Bundle_HeadlessBundle_Tests_Application_KernelDevDebugContainer.xml
         console_application_loader: Tests/phpstan/console-application.php
+        constant_hassers: false
     doctrine:
         objectManagerLoader: Tests/phpstan/object-manager.php