diff --git a/.github/workflows/fix-php-code-style-issues.yml b/.github/workflows/fix-php-code-style-issues.yml
index 1d74a65a..7f61fce2 100644
--- a/.github/workflows/fix-php-code-style-issues.yml
+++ b/.github/workflows/fix-php-code-style-issues.yml
@@ -13,7 +13,7 @@ jobs:
           ref: ${{ github.head_ref }}
 
       - name: Fix PHP code style issues
-        uses: aglipanci/laravel-pint-action@2.3.0
+        uses: aglipanci/laravel-pint-action@2.3.1
 
       - name: Commit changes
         uses: stefanzweifel/git-auto-commit-action@v5
diff --git a/src/Commands/SeoScan.php b/src/Commands/SeoScan.php
index 806fde25..62927512 100644
--- a/src/Commands/SeoScan.php
+++ b/src/Commands/SeoScan.php
@@ -165,7 +165,7 @@ private static function getRoutes(): Collection
         return $routes;
     }
 
-    private function calculateScoreForModel(string $model, string $scope = null): void
+    private function calculateScoreForModel(string $model, ?string $scope = null): void
     {
         $items = new $model;
 
@@ -198,7 +198,7 @@ private function calculateScoreForModel(string $model, string $scope = null): vo
         });
     }
 
-    private function saveScoreToDatabase(SeoScore $seo, string $url, object $model = null): void
+    private function saveScoreToDatabase(SeoScore $seo, string $url, ?object $model = null): void
     {
         $score = $seo->getScore();
 
diff --git a/src/Helpers/TransitionWords.php b/src/Helpers/TransitionWords.php
index 6c0a5838..c7df4104 100644
--- a/src/Helpers/TransitionWords.php
+++ b/src/Helpers/TransitionWords.php
@@ -54,7 +54,7 @@ public static function getTransitionWords(): array
         return self::$transitionWords;
     }
 
-    public static function getTransitionWordsOnly(string $locale = null): array
+    public static function getTransitionWordsOnly(?string $locale = null): array
     {
         $transitionWords = self::$transitionWords;
 
diff --git a/src/Jobs/Scan.php b/src/Jobs/Scan.php
index 59752a64..b466327c 100644
--- a/src/Jobs/Scan.php
+++ b/src/Jobs/Scan.php
@@ -17,7 +17,7 @@ class Scan implements ShouldQueue
 
     public $timeout = 60 * 60 * 3;
 
-    public function handle(string $url = null): void
+    public function handle(?string $url = null): void
     {
         if (! $url) {
             Artisan::call('seo:scan');
diff --git a/src/Seo.php b/src/Seo.php
index 2ccd5aaf..539ed53e 100755
--- a/src/Seo.php
+++ b/src/Seo.php
@@ -29,7 +29,7 @@ public function __construct(
     ) {
     }
 
-    public function check(string $url, ProgressBar $progress = null, bool $useJavascript = false): SeoScore
+    public function check(string $url, ?ProgressBar $progress = null, bool $useJavascript = false): SeoScore
     {
         $this->progress = $progress;
         $this->url = $url;
@@ -80,7 +80,7 @@ private function visitPage(string $url): object
         return $response;
     }
 
-    private function runChecks(Response $response, string $javascriptResponse = null): void
+    private function runChecks(Response $response, ?string $javascriptResponse = null): void
     {
         $checks = self::orderedCheckClasses();
 
diff --git a/src/helpers.php b/src/helpers.php
index efb74644..97b53896 100644
--- a/src/helpers.php
+++ b/src/helpers.php
@@ -132,7 +132,7 @@ function bytesToHumanReadable(int $bytes): string
 }
 
 if (! function_exists('addBaseIfRelativeUrl')) {
-    function addBaseIfRelativeUrl(string $url, string $checkedUrl = null): string
+    function addBaseIfRelativeUrl(string $url, ?string $checkedUrl = null): string
     {
         if (! Str::startsWith($url, '/')) {
             return $url;