diff --git a/rector.php b/rector.php
index e16de7bae441..14a079e0ab04 100644
--- a/rector.php
+++ b/rector.php
@@ -55,6 +55,7 @@
 use Rector\TypeDeclaration\Rector\Closure\AddClosureVoidReturnTypeWhereNoReturnRector;
 use Rector\TypeDeclaration\Rector\Empty_\EmptyOnNullableObjectToInstanceOfRector;
 use Rector\TypeDeclaration\Rector\Function_\AddFunctionVoidReturnTypeWhereNoReturnRector;
+use Rector\TypeDeclaration\Rector\Property\TypedPropertyFromAssignsRector;
 use Rector\TypeDeclaration\Rector\StmtsAwareInterface\DeclareStrictTypesRector;
 use Utils\Rector\PassStrictParameterToFunctionParameterRector;
 use Utils\Rector\RemoveErrorSuppressInTryCatchStmtsRector;
@@ -215,6 +216,7 @@
         AddClosureVoidReturnTypeWhereNoReturnRector::class,
         AddFunctionVoidReturnTypeWhereNoReturnRector::class,
         AddMethodCallBasedStrictParamTypeRector::class,
+        TypedPropertyFromAssignsRector::class,
     ])
     ->withConfiguredRule(StringClassNameToClassConstantRector::class, [
         // keep '\\' prefix string on string '\Foo\Bar'
diff --git a/system/Config/Factories.php b/system/Config/Factories.php
index d98664a24a7b..be66005a8adf 100644
--- a/system/Config/Factories.php
+++ b/system/Config/Factories.php
@@ -37,7 +37,7 @@ final class Factories
      *
      * @var array<string, array<string, bool|string|null>>
      */
-    private static $options = [];
+    private static array $options = [];
 
     /**
      * Explicit options for the Config
@@ -65,7 +65,7 @@ final class Factories
      *
      * @var array<string, array<string, class-string>>
      */
-    private static $aliases = [];
+    private static array $aliases = [];
 
     /**
      * Store for instances of any component that
@@ -78,7 +78,7 @@ final class Factories
      *
      * @var array<string, array<class-string, object>>
      */
-    private static $instances = [];
+    private static array $instances = [];
 
     /**
      * Whether the component instances are updated?
@@ -87,7 +87,7 @@ final class Factories
      *
      * @internal For caching only
      */
-    private static $updated = [];
+    private static array $updated = [];
 
     /**
      * Define the class to load. You can *override* the concrete class.