diff --git a/composer.lock b/composer.lock
index 657d41d68..08946bb30 100644
--- a/composer.lock
+++ b/composer.lock
@@ -3518,12 +3518,12 @@
             "source": {
                 "type": "git",
                 "url": "https://github.com/rectorphp/rector.git",
-                "reference": "313e7155e985b5a3352106091c66347775ff42dc"
+                "reference": "0f3412868a0c146dcd99ed14535ba95129d39228"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/rectorphp/rector/zipball/313e7155e985b5a3352106091c66347775ff42dc",
-                "reference": "313e7155e985b5a3352106091c66347775ff42dc",
+                "url": "https://api.github.com/repos/rectorphp/rector/zipball/0f3412868a0c146dcd99ed14535ba95129d39228",
+                "reference": "0f3412868a0c146dcd99ed14535ba95129d39228",
                 "shasum": ""
             },
             "require": {
@@ -3571,7 +3571,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2026-05-04T16:46:15+00:00"
+            "time": "2026-05-06T14:58:49+00:00"
         },
         {
             "name": "samsonasik/array-lookup",
diff --git a/src/Controller/FallbackController.php b/src/Controller/FallbackController.php
index 8ca1e5a04..8cac0462c 100644
--- a/src/Controller/FallbackController.php
+++ b/src/Controller/FallbackController.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace App\Controller;
 
 use App\FileSystem\RectorFinder;
diff --git a/src/Sets/RectorSetsTreeProvider.php b/src/Sets/RectorSetsTreeProvider.php
index 35b906b29..17995007c 100644
--- a/src/Sets/RectorSetsTreeProvider.php
+++ b/src/Sets/RectorSetsTreeProvider.php
@@ -103,7 +103,7 @@ private function createRectorSetsFromSetProviders(array $sets): array
             // Only consider rector classes without configuration, just as in the result list.
             $rectorClasses = array_filter(
                 $setRectorsResolver->resolveFromFilePathIncludingConfiguration($set->getSetFilePath()),
-                static fn ($rectorClass) => is_string($rectorClass),
+                is_string(...),
             );
             if ($rectorClasses !== []) {
                 $rectorSets[] = new RectorSet($set->getGroupName(), $set->getName(), $rectorClasses);
diff --git a/tests/Controller/FallbackControllerTest.php b/tests/Controller/FallbackControllerTest.php
index d4a73d97d..639bed5f7 100644
--- a/tests/Controller/FallbackControllerTest.php
+++ b/tests/Controller/FallbackControllerTest.php
@@ -1,30 +1,32 @@
 <?php
 
+declare(strict_types=1);
+
 namespace App\Tests\Controller;
 
 use App\Tests\AbstractTestCase;
 use Illuminate\Foundation\Http\Middleware\PreventRequestForgery;
 
-class FallbackControllerTest extends AbstractTestCase
+final class FallbackControllerTest extends AbstractTestCase
 {
     public function testRedirectsRuleSlug(): void
     {
-        $response = $this->get('/simplify-array-search-rector');
+        $testResponse = $this->get('/simplify-array-search-rector');
 
-        $response->assertRedirect('/rule-detail/simplify-array-search-rector');
+        $testResponse->assertRedirect('/rule-detail/simplify-array-search-rector');
     }
 
     public function testReturns404ForUnknownSlug(): void
     {
-        $response = $this->get('/unknown-rule');
+        $testResponse = $this->get('/unknown-rule');
 
-        $response->assertNotFound();
+        $testResponse->assertNotFound();
     }
 
     public function testRedirectsWithPascalCaseSlug(): void
     {
-        $response = $this->get('/SimplifyArraySearchRector');
+        $testResponse = $this->get('/SimplifyArraySearchRector');
 
-        $response->assertRedirect('/rule-detail/simplify-array-search-rector');
+        $testResponse->assertRedirect('/rule-detail/simplify-array-search-rector');
     }
 }
diff --git a/tests/Controller/RuleDetailControllerTest.php b/tests/Controller/RuleDetailControllerTest.php
index 9aff32e33..c62bf4f42 100644
--- a/tests/Controller/RuleDetailControllerTest.php
+++ b/tests/Controller/RuleDetailControllerTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace App\Tests\Controller;
 
 use App\Tests\AbstractTestCase;
@@ -7,13 +9,13 @@
 use Illuminate\Foundation\Testing\WithFaker;
 use Tests\TestCase;
 
-class RuleDetailControllerTest extends AbstractTestCase
+final class RuleDetailControllerTest extends AbstractTestCase
 {
     public function testItRendersRulesBySlug(): void
     {
-        $response = $this->get('/rule-detail/simplify-array-search-rector');
+        $testResponse = $this->get('/rule-detail/simplify-array-search-rector');
 
-        $response
+        $testResponse
             ->assertOk()
             ->assertViewIs('homepage.rule_detail')
             ->assertViewHas('ruleMetadata')
@@ -24,15 +26,15 @@ public function testItRendersRulesBySlug(): void
 
     public function testItRedirectsToFindRuleIfRuleNotFound(): void
     {
-        $response = $this->get('/rule-detail/unknown-rule');
+        $testResponse = $this->get('/rule-detail/unknown-rule');
 
-        $response->assertRedirect('/find-rule');
+        $testResponse->assertRedirect('/find-rule');
     }
 
     public function testItRedirectsToKebabCaseSlugIfPascalCaseSlug(): void
     {
-        $response = $this->get('/rule-detail/SimplifyArraySearchRector');
+        $testResponse = $this->get('/rule-detail/SimplifyArraySearchRector');
 
-        $response->assertRedirect('/rule-detail/simplify-array-search-rector');
+        $testResponse->assertRedirect('/rule-detail/simplify-array-search-rector');
     }
 }