diff --git a/.github/workflows/run-tests.yml b/.github/workflows/run-tests.yml
index 66c8486..09024eb 100644
--- a/.github/workflows/run-tests.yml
+++ b/.github/workflows/run-tests.yml
@@ -9,7 +9,7 @@ jobs:
     strategy:
       fail-fast: true
       matrix:
-        php: [8.0, 8.1]
+        php: [8.1, 8.2]
         dependency-version: [prefer-lowest, prefer-stable]
 
     name: PHP ${{ matrix.php }} - ${{ matrix.dependency-version }}
diff --git a/composer.json b/composer.json
index e57c3b8..8d2d0e2 100644
--- a/composer.json
+++ b/composer.json
@@ -14,15 +14,15 @@
     "type":    "library",
     "license": "MIT",
     "require": {
-        "php": "^8.0",
+        "php": "^8.1",
         "ext-json": "*",
-        "arcanedev/support": "^9.0"
+        "arcanedev/support": "^9.0|^10.0"
     },
     "require-dev": {
         "ext-intl": "*",
-        "laravel/framework": "^9.0",
+        "laravel/framework": "^9.0|^10.0",
         "mockery/mockery": "^1.4.4",
-        "orchestra/testbench-core": "^7.0",
+        "orchestra/testbench-core": "^7.0|^8.0",
         "phpunit/phpunit": "^9.5.10"
     },
     "autoload": {
diff --git a/src/Entities/Locale.php b/src/Entities/Locale.php
index 36f776f..9f699a2 100644
--- a/src/Entities/Locale.php
+++ b/src/Entities/Locale.php
@@ -334,7 +334,7 @@ public function toJson($options = 0)
      *
      * @return array
      */
-    public function jsonSerialize()
+    public function jsonSerialize(): mixed
     {
         return $this->toArray();
     }