diff --git a/.github/workflows/php.yml b/.github/workflows/php.yml
index 5972736..d1fe883 100644
--- a/.github/workflows/php.yml
+++ b/.github/workflows/php.yml
@@ -8,7 +8,7 @@ jobs:
     strategy:
       matrix:
         operating-system: [ubuntu-latest, macOS-latest]
-        php-versions: ["8.1", "8.2"]
+        php-versions: ["8.2", "8.3"]
     name: PHP ${{ matrix.php-versions }} Test on ${{ matrix.operating-system }}
 
     steps:
diff --git a/composer.json b/composer.json
index 15c6ac5..8b5630f 100644
--- a/composer.json
+++ b/composer.json
@@ -23,13 +23,13 @@
     }
   },
   "require": {
-    "php": "^8.1",
+    "php": "^8.2",
     "ext-intl": "*",
     "illuminate/support": "^6.0|^7.0|^8.0|^9.0|^10.0|^11.0"
   },
   "require-dev": {
-    "phpunit/phpunit": ">=9.0",
-    "orchestra/testbench": ">=6.0",
+    "phpunit/phpunit": "^9.0",
+    "orchestra/testbench": "^6.0",
     "friendsofphp/php-cs-fixer": "^3.9",
     "brainmaestro/composer-git-hooks": "^2.8"
   },
diff --git a/composer.lock b/composer.lock
index 54e5b2a..04b3ce3 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "856a32a645ead8ab3851e34edd2b793b",
+    "content-hash": "62da3895d50e720cb31b106962aea78c",
     "packages": [
         {
             "name": "brick/math",
@@ -9041,7 +9041,7 @@
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {
-        "php": "^8.1",
+        "php": "^8.2",
         "ext-intl": "*"
     },
     "platform-dev": [],