diff --git a/src/ThemeServiceProvider.php b/src/ThemeServiceProvider.php
index 107580bb1e..cd1185f9ed 100644
--- a/src/ThemeServiceProvider.php
+++ b/src/ThemeServiceProvider.php
@@ -14,7 +14,7 @@ class ThemeServiceProvider extends ServiceProvider
     protected string $packageName = 'theme-name';
     protected array $commands = [];
     protected bool $theme = true;
-    protected null|string $componentsNamespace = null;
+    protected ?string $componentsNamespace = null;
 
     /**
      * -------------------------
diff --git a/src/app/Http/Controllers/Auth/VerifyEmailController.php b/src/app/Http/Controllers/Auth/VerifyEmailController.php
index dba7d26ce9..c9a0db08a0 100644
--- a/src/app/Http/Controllers/Auth/VerifyEmailController.php
+++ b/src/app/Http/Controllers/Auth/VerifyEmailController.php
@@ -11,7 +11,7 @@
 
 class VerifyEmailController extends Controller
 {
-    public null|string $redirectTo = null;
+    public ?string $redirectTo = null;
 
     /**
      * Create a new controller instance.
diff --git a/src/app/Library/CrudPanel/Traits/Filters.php b/src/app/Library/CrudPanel/Traits/Filters.php
index 34f08d4457..da2584b728 100644
--- a/src/app/Library/CrudPanel/Traits/Filters.php
+++ b/src/app/Library/CrudPanel/Traits/Filters.php
@@ -136,7 +136,7 @@ public function filters()
 
     /**
      * @param  string  $name
-     * @return null|CrudFilter
+     * @return ?CrudFilter
      */
     public function getFilter($name)
     {
diff --git a/src/app/Library/CrudPanel/Traits/Input.php b/src/app/Library/CrudPanel/Traits/Input.php
index 5f520667df..930ec6d450 100644
--- a/src/app/Library/CrudPanel/Traits/Input.php
+++ b/src/app/Library/CrudPanel/Traits/Input.php
@@ -17,7 +17,7 @@ trait Input
      * Returns the direct inputs parsed for model and relationship creation.
      *
      * @param  array  $inputs
-     * @param  null|array  $relationDetails
+     * @param  ?array  $relationDetails
      * @param  bool|string  $relationMethod
      * @return array
      */
diff --git a/src/app/Library/Uploaders/Support/RegisterUploadEvents.php b/src/app/Library/Uploaders/Support/RegisterUploadEvents.php
index 237f90ce85..a8f6e9c8ea 100644
--- a/src/app/Library/Uploaders/Support/RegisterUploadEvents.php
+++ b/src/app/Library/Uploaders/Support/RegisterUploadEvents.php
@@ -25,7 +25,7 @@ public function __construct(
         }
     }
 
-    public static function handle(CrudField|CrudColumn $crudObject, array $uploaderConfiguration, string $macro, ?array $subfield = null, ?bool $registerModelEvents = true): void
+    public static function handle(CrudField|CrudColumn $crudObject, array $uploaderConfiguration, string $macro, ?array $subfield = null, bool $registerModelEvents = true): void
     {
         $instance = new self($crudObject, $uploaderConfiguration, $macro);
 
diff --git a/src/app/Library/Uploaders/Support/Traits/HandleRepeatableUploads.php b/src/app/Library/Uploaders/Support/Traits/HandleRepeatableUploads.php
index 56f6b2f91b..8c00f65ae6 100644
--- a/src/app/Library/Uploaders/Support/Traits/HandleRepeatableUploads.php
+++ b/src/app/Library/Uploaders/Support/Traits/HandleRepeatableUploads.php
@@ -14,7 +14,7 @@ trait HandleRepeatableUploads
 {
     public bool $handleRepeatableFiles = false;
 
-    public null|string $repeatableContainerName = null;
+    public ?string $repeatableContainerName = null;
 
     /*******************************
      * Setters - fluently configure the uploader
@@ -31,7 +31,7 @@ public function repeats(string $repeatableContainerName): self
     /*******************************
      * Getters
      *******************************/
-    public function getRepeatableContainerName(): null|string
+    public function getRepeatableContainerName(): ?string
     {
         return $this->repeatableContainerName;
     }
diff --git a/src/app/Library/Validation/Rules/ValidFileArray.php b/src/app/Library/Validation/Rules/ValidFileArray.php
index 829408e023..03f824c62e 100644
--- a/src/app/Library/Validation/Rules/ValidFileArray.php
+++ b/src/app/Library/Validation/Rules/ValidFileArray.php
@@ -63,7 +63,7 @@ protected function validateItems(string $attribute, array $items, Closure $fail)
         }
     }
 
-    protected function validateArrayData(string $attribute, Closure $fail, null|array $data = null, null|array $rules = null): void
+    protected function validateArrayData(string $attribute, Closure $fail, ?array $data = null, ?array $rules = null): void
     {
         $data = $data ?? $this->data;
         $rules = $rules ?? $this->getFieldRules();