diff --git a/src/Api/Controller/ListDiscussionsController.php b/src/Api/Controller/ListDiscussionsController.php
index a030c185bb..ab7a3d3c50 100644
--- a/src/Api/Controller/ListDiscussionsController.php
+++ b/src/Api/Controller/ListDiscussionsController.php
@@ -16,7 +16,6 @@
 use Flarum\Filter\Filterer;
 use Flarum\Http\UrlGenerator;
 use Flarum\Search\SearchCriteria;
-use Illuminate\Support\Arr;
 use Psr\Http\Message\ServerRequestInterface;
 use Tobscure\JsonApi\Document;
 
diff --git a/src/Api/Controller/ListUsersController.php b/src/Api/Controller/ListUsersController.php
index 4fe4cd3c60..ff09cfb358 100644
--- a/src/Api/Controller/ListUsersController.php
+++ b/src/Api/Controller/ListUsersController.php
@@ -15,7 +15,6 @@
 use Flarum\Search\SearchCriteria;
 use Flarum\User\Search\UserSearcher;
 use Flarum\User\UserRepository;
-use Illuminate\Support\Arr;
 use Psr\Http\Message\ServerRequestInterface;
 use Tobscure\JsonApi\Document;
 
diff --git a/src/Discussion/Filter/AuthorFilter.php b/src/Discussion/Filter/AuthorFilter.php
index 9fea602dcf..762b781cc3 100644
--- a/src/Discussion/Filter/AuthorFilter.php
+++ b/src/Discussion/Filter/AuthorFilter.php
@@ -44,6 +44,5 @@ public function filter(WrappedFilter $wrappedFilter, string $filterValue, bool $
         }
 
         $wrappedFilter->getQuery()->whereIn('discussions.user_id', $ids, 'and', $negate);
-
     }
 }
diff --git a/src/Discussion/Filter/CreatedFilter.php b/src/Discussion/Filter/CreatedFilter.php
index fb207644e7..d56268a528 100644
--- a/src/Discussion/Filter/CreatedFilter.php
+++ b/src/Discussion/Filter/CreatedFilter.php
@@ -34,6 +34,5 @@ public function filter(WrappedFilter $wrappedFilter, string $filterValue, bool $
         } else {
             $wrappedFilter->getQuery()->whereBetween('created_at', [$matches[1], $matches[3]], 'and', $negate);
         }
-
     }
 }
diff --git a/src/Discussion/Filter/UnreadFilter.php b/src/Discussion/Filter/UnreadFilter.php
index ec192c6893..4986bd160a 100644
--- a/src/Discussion/Filter/UnreadFilter.php
+++ b/src/Discussion/Filter/UnreadFilter.php
@@ -33,7 +33,6 @@ public function __construct(DiscussionRepository $discussions)
         $this->discussions = $discussions;
     }
 
-
     public function filter(WrappedFilter $wrappedFilter, string $filterValue, bool $negate)
     {
         $actor = $wrappedFilter->getActor();
@@ -42,7 +41,7 @@ public function filter(WrappedFilter $wrappedFilter, string $filterValue, bool $
             $readIds = $this->discussions->getReadIds($actor);
 
             $wrappedFilter->getQuery()->where(function ($query) use ($readIds, $negate, $actor) {
-                if (!$negate) {
+                if (! $negate) {
                     $query->whereNotIn('id', $readIds)->where('last_posted_at', '>', $actor->marked_all_as_read_at ?: 0);
                 } else {
                     $query->whereIn('id', $readIds)->orWhere('last_posted_at', '<=', $actor->marked_all_as_read_at ?: 0);
diff --git a/src/Filter/FilterServiceProvider.php b/src/Filter/FilterServiceProvider.php
index 5f22ed522b..6aff4e485b 100644
--- a/src/Filter/FilterServiceProvider.php
+++ b/src/Filter/FilterServiceProvider.php
@@ -14,7 +14,6 @@
 use Flarum\Discussion\Filter\CreatedFilter;
 use Flarum\Discussion\Filter\HiddenFilter;
 use Flarum\Discussion\Filter\UnreadFilter;
-use Flarum\Filter\Filterer;
 use Flarum\Foundation\AbstractServiceProvider;
 use Flarum\User\Filter\EmailFilter;
 use Flarum\User\Filter\GroupFilter;
@@ -29,7 +28,7 @@ class FilterServiceProvider extends AbstractServiceProvider
      */
     public function register()
     {
-        $this->app->singleton('flarum.filter.filters', function() {
+        $this->app->singleton('flarum.filter.filters', function () {
             return [
                 Discussion::class => [
                     AuthorFilter::class,
diff --git a/src/User/Filter/EmailFilter.php b/src/User/Filter/EmailFilter.php
index 9fe8128f72..7d2e81692c 100644
--- a/src/User/Filter/EmailFilter.php
+++ b/src/User/Filter/EmailFilter.php
@@ -21,7 +21,7 @@ public function getFilterKey(): string
 
     public function filter(WrappedFilter $wrappedFilter, string $filterValue, bool $negate)
     {
-        if (!$wrappedFilter->getActor()->hasPermission('user.edit')) {
+        if (! $wrappedFilter->getActor()->hasPermission('user.edit')) {
             return;
         }
 
diff --git a/tests/integration/api/discussions/ListTest.php b/tests/integration/api/discussions/ListTest.php
index 11ec4f2fcf..3010788c49 100644
--- a/tests/integration/api/discussions/ListTest.php
+++ b/tests/integration/api/discussions/ListTest.php
@@ -10,8 +10,6 @@
 namespace Flarum\Tests\integration\api\discussions;
 
 use Carbon\Carbon;
-use Flarum\Discussion\Discussion;
-use Flarum\Discussion\UserState;
 use Flarum\Tests\integration\RetrievesAuthorizedUsers;
 use Flarum\Tests\integration\TestCase;
 use Flarum\User\User;
@@ -280,7 +278,7 @@ public function hidden_filter_works()
     public function hidden_filter_works_negated()
     {
         $response = $this->send(
-            $this->request('GET','/api/discussions', ['authenticatedAs' => 1])
+            $this->request('GET', '/api/discussions', ['authenticatedAs' => 1])
             ->withQueryParams([
                 'filter' => ['-hidden' => ''],
                 'include' => 'mostRelevantPost',