diff --git a/app/Form/Models/Form.php b/app/Form/Models/Form.php
index 26b31426..60eeccfb 100644
--- a/app/Form/Models/Form.php
+++ b/app/Form/Models/Form.php
@@ -24,6 +24,9 @@ class Form extends Model implements HasMedia
         'config' => 'json',
     ];
 
+    /**
+     * @return SluggableConfig
+     */
     public function sluggable(): array
     {
         return [
diff --git a/app/Member/Member.php b/app/Member/Member.php
index 842b25ae..5b39bad8 100644
--- a/app/Member/Member.php
+++ b/app/Member/Member.php
@@ -93,7 +93,7 @@ class Member extends Model implements Geolocatable
     }
 
     /**
-     * @return array<string, array{source: array<int, string>}>
+     * @return SluggableConfig
      */
     public function sluggable(): array
     {
diff --git a/phpstan.neon b/phpstan.neon
index 1423a9a7..f0bf3afe 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -24,6 +24,7 @@ parameters:
         ContributionApiRequestArray: 'array{dateFrom: string, dateUntil: string, zipLocation: string, country: int, eventName: string, member_data: array<int, ContributionMemberData>}'
         MailgatewayCustomField: 'array{name: string, label: string, type: string, storeValidator: string, updateValidator: string, default: string}'
         MailgatewayParsedCustomField: 'array{name: string, label: string, type: string, storeValidator: string, updateValidator: string, default: string, is_required: bool}'
+        SluggableConfig: 'array<string, array{source: array<int, string>}>'
 
     ignoreErrors:
         -
@@ -136,16 +137,6 @@ parameters:
             count: 1
             path: app/Payment/SubscriptionResource.php
 
-        -
-            message: "#^PHPDoc type array of property App\\\\Providers\\\\AuthServiceProvider\\:\\:\\$policies is not covariant with PHPDoc type array\\<class\\-string, class\\-string\\> of overridden property Illuminate\\\\Foundation\\\\Support\\\\Providers\\\\AuthServiceProvider\\:\\:\\$policies\\.$#"
-            count: 1
-            path: app/Providers/AuthServiceProvider.php
-
-        -
-            message: "#^Property App\\\\Providers\\\\AuthServiceProvider\\:\\:\\$policies type has no value type specified in iterable type array\\.$#"
-            count: 1
-            path: app/Providers/AuthServiceProvider.php
-
         -
             message: "#^Method Database\\\\Factories\\\\ActivityFactory\\:\\:definition\\(\\) return type has no value type specified in iterable type array\\.$#"
             count: 1