diff --git a/.github/workflows/php.yml b/.github/workflows/php.yml
index e3da9de..48d9aff 100644
--- a/.github/workflows/php.yml
+++ b/.github/workflows/php.yml
@@ -131,10 +131,10 @@ jobs:
         run: php -d memory_limit=-1 vendor/bin/phpcs --standard=PSR12 tests
 
       - name: PHPStan (Src)
-        run: php -d memory_limit=-1 vendor/bin/phpstan analyse --level max src
+        run: php -d memory_limit=-1 vendor/bin/phpstan analyse --level 10 src
 
       - name: PHPStan (Tests)
-        run: php -d memory_limit=-1 vendor/bin/phpstan analyse --level max tests
+        run: php -d memory_limit=-1 vendor/bin/phpstan analyse --level 10 tests
 
   tests-phpunit:
     runs-on: ubuntu-latest
diff --git a/phpunit.xml b/phpunit.xml
index 737b01e..8ab85e2 100644
--- a/phpunit.xml
+++ b/phpunit.xml
@@ -14,7 +14,7 @@
     stopOnWarning="true"
     bootstrap="vendor/autoload.php"
     cacheDirectory="tests/build/cache"
-    xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.3/phpunit.xsd"
+    xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/13.0/phpunit.xsd"
     backupStaticProperties="false"
     displayDetailsOnIncompleteTests="true"
     displayDetailsOnSkippedTests="true"
@@ -25,9 +25,7 @@
 >
     <php>
         <env name="APP_ENV" value="testing" />
-
         <ini name="date.timezone" value="America/Bogota" />
-        <ini name="intl.default_locale" value="C.UTF-8" />
         <ini name="memory_limit" value="2048M" />
     </php>
 
diff --git a/src/LionRequest/Response.php b/src/LionRequest/Response.php
index 5ba29d7..c2cf78d 100644
--- a/src/LionRequest/Response.php
+++ b/src/LionRequest/Response.php
@@ -53,7 +53,8 @@ public static function finish(mixed $response, bool $isJson = true): never
      * @param string $status The type of status on the object.
      * @param string|null $message Message inside the object.
      * @param int $code HTTP status code inside the object.
-     * @param mixed $data Extra data inside the object.
+     * @param array<mixed>|bool|float|int|null|object|string $data Extra data inside
+     * the object.
      *
      * @return stdClass
      */
@@ -61,7 +62,7 @@ public static function custom(
         string $status,
         ?string $message = null,
         int $code = Http::OK,
-        mixed $data = null
+        array|bool|float|int|null|object|string $data = null
     ): stdClass {
         http_response_code($code);
 
@@ -83,12 +84,16 @@ public static function custom(
      *
      * @param string|null $message Message inside the object.
      * @param int $code HTTP status code inside the object.
-     * @param mixed $data Extra data inside the object.
+     * @param array<mixed>|bool|float|int|null|object|string $data Extra data inside
+     * the object.
      *
      * @return stdClass
      */
-    public static function success(?string $message = null, int $code = Http::OK, mixed $data = null): stdClass
-    {
+    public static function success(
+        ?string $message = null,
+        int $code = Http::OK,
+        array|bool|float|int|null|object|string $data = null
+    ): stdClass {
         return self::custom(Status::SUCCESS, $message, $code, $data);
     }
 
@@ -97,7 +102,8 @@ public static function success(?string $message = null, int $code = Http::OK, mi
      *
      * @param string|null $message Message inside the object.
      * @param int $code HTTP status code inside the object.
-     * @param mixed $data Extra data inside the object.
+     * @param array<mixed>|bool|float|int|null|object|string $data Extra data inside
+     * the object.
      *
      * @return stdClass
      */
@@ -114,12 +120,16 @@ public static function error(
      *
      * @param string|null $message Message inside the object.
      * @param int $code HTTP status code inside the object.
-     * @param mixed $data Extra data inside the object.
+     * @param array<mixed>|bool|float|int|null|object|string $data Extra data inside
+     * the object.
      *
      * @return stdClass
      */
-    public static function warning(?string $message = null, int $code = Http::OK, mixed $data = null): stdClass
-    {
+    public static function warning(
+        ?string $message = null,
+        int $code = Http::OK,
+        array|bool|float|int|null|object|string $data = null
+    ): stdClass {
         return self::custom(Status::WARNING, $message, $code, $data);
     }
 
@@ -128,12 +138,16 @@ public static function warning(?string $message = null, int $code = Http::OK, mi
      *
      * @param string|null $message Message inside the object.
      * @param int $code HTTP status code inside the object.
-     * @param mixed $data Extra data inside the object.
+     * @param array<mixed>|bool|float|int|null|object|string $data Extra data inside
+     * the object.
      *
      * @return stdClass
      */
-    public static function info(?string $message = null, int $code = Http::OK, mixed $data = null): stdClass
-    {
+    public static function info(
+        ?string $message = null,
+        int $code = Http::OK,
+        array|bool|float|int|null|object|string $data = null
+    ): stdClass {
         return self::custom(Status::INFO, $message, $code, $data);
     }
 }