diff --git a/tests/integration/Config/CapabilitiesTest.php b/tests/integration/Config/CapabilitiesTest.php
index 302da78a08..af6c6c0405 100644
--- a/tests/integration/Config/CapabilitiesTest.php
+++ b/tests/integration/Config/CapabilitiesTest.php
@@ -9,6 +9,7 @@ use MailPoet\Config\AccessControl;
 use MailPoet\Config\Capabilities;
 use MailPoet\Config\Renderer;
 use MailPoet\WP\Functions as WPFunctions;
+use WP_Role;
 
 class CapabilitiesTest extends \MailPoetTest {
 
@@ -42,7 +43,9 @@ class CapabilitiesTest extends \MailPoetTest {
     foreach ($permissions as $name => $roles) {
       foreach ($roles as $role) {
         $checked = true;
-        expect(get_role($role)->has_cap($name))->true();
+        $role = get_role($role);
+        assert($role instanceof WP_Role);
+        expect($role->has_cap($name))->true();
       }
     }
     expect($checked)->true();
@@ -55,7 +58,9 @@ class CapabilitiesTest extends \MailPoetTest {
     foreach ($permissions as $name => $roles) {
       foreach ($roles as $role) {
         $checked = true;
-        expect(get_role($role)->has_cap($name))->false();
+        $role = get_role($role);
+        assert($role instanceof WP_Role);
+        expect($role->has_cap($name))->false();
       }
     }
     expect($checked)->true();
@@ -78,6 +83,7 @@ class CapabilitiesTest extends \MailPoetTest {
 
     // other MailPoet capabilities were successfully configured
     $editorRole = get_role('editor');
+    assert($editorRole instanceof WP_Role);
     expect($editorRole->has_cap(AccessControl::PERMISSION_ACCESS_PLUGIN_ADMIN))->false();
     expect($editorRole->has_cap(AccessControl::PERMISSION_MANAGE_EMAILS))->true();
 
@@ -86,6 +92,7 @@ class CapabilitiesTest extends \MailPoetTest {
     $this->caps->setupWPCapabilities();
 
     $editorRole = get_role('editor');
+    assert($editorRole instanceof WP_Role);
     expect($editorRole->has_cap(AccessControl::PERMISSION_ACCESS_PLUGIN_ADMIN))->true();
     expect($editorRole->has_cap(AccessControl::PERMISSION_MANAGE_EMAILS))->true();
   }
diff --git a/tests/integration/Config/DatabaseTest.php b/tests/integration/Config/DatabaseTest.php
index 4d85c3a855..2b25a254fc 100644
--- a/tests/integration/Config/DatabaseTest.php
+++ b/tests/integration/Config/DatabaseTest.php
@@ -17,7 +17,7 @@ class DatabaseTest extends \MailPoetTest {
 
   public function _before() {
     parent::_before();
-    ORM::set_db(null);
+    ORM::set_db(null); // @phpstan-ignore-line
   }
 
   public function testItDefinesTables() {
diff --git a/tests/integration/Config/ShortcodesTest.php b/tests/integration/Config/ShortcodesTest.php
index e7f298b074..cec18e0ad4 100644
--- a/tests/integration/Config/ShortcodesTest.php
+++ b/tests/integration/Config/ShortcodesTest.php
@@ -66,7 +66,7 @@ class ShortcodesTest extends \MailPoetTest {
     expect((new WPFunctions)->isUserLoggedIn())->true();
     $subscriber = Subscriber::create();
     $subscriber->hydrate(Fixtures::get('subscriber_template'));
-    $subscriber->email = $wpUser->data->user_email;
+    $subscriber->email = $wpUser->data->user_email; // @phpstan-ignore-line
     $subscriber->wpUserId = $wpUser->ID;
     $subscriber->save();
 
@@ -83,7 +83,7 @@ class ShortcodesTest extends \MailPoetTest {
     expect($wp->isUserLoggedIn())->true();
     $subscriber = Subscriber::create();
     $subscriber->hydrate(Fixtures::get('subscriber_template'));
-    $subscriber->email = $wpUser->data->user_email;
+    $subscriber->email = $wpUser->data->user_email; // @phpstan-ignore-line
     $subscriber->wpUserId = $wpUser->ID;
     $subscriber->save();
 
@@ -102,7 +102,7 @@ class ShortcodesTest extends \MailPoetTest {
   public function testItDoesNotDisplayManageSubscriptionFormForLoggedinNonexistentSubscribers() {
     $wpUser = wp_set_current_user(1);
     expect((new WPFunctions)->isUserLoggedIn())->true();
-    expect(Subscriber::findOne($wpUser->data->user_email))->false();
+    expect(Subscriber::findOne($wpUser->data->user_email))->false(); // @phpstan-ignore-line
 
     $shortcodes = ContainerWrapper::getInstance()->get(Shortcodes::class);
     $shortcodes->init();
@@ -125,7 +125,7 @@ class ShortcodesTest extends \MailPoetTest {
     expect((new WPFunctions)->isUserLoggedIn())->true();
     $subscriber = Subscriber::create();
     $subscriber->hydrate(Fixtures::get('subscriber_template'));
-    $subscriber->email = $wpUser->data->user_email;
+    $subscriber->email = $wpUser->data->user_email; // @phpstan-ignore-line
     $subscriber->wpUserId = $wpUser->ID;
     $subscriber->save();
 
@@ -138,7 +138,7 @@ class ShortcodesTest extends \MailPoetTest {
   public function testItDoesNotDisplayLinkToManageSubscriptionPageForLoggedinNonexistentSubscribers() {
     $wpUser = wp_set_current_user(1);
     expect((new WPFunctions)->isUserLoggedIn())->true();
-    expect(Subscriber::findOne($wpUser->data->user_email))->false();
+    expect(Subscriber::findOne($wpUser->data->user_email))->false(); // @phpstan-ignore-line
 
     $shortcodes = ContainerWrapper::getInstance()->get(Shortcodes::class);
     $shortcodes->init();