diff --git a/composer.json b/composer.json
index a7454f9..d6a3430 100644
--- a/composer.json
+++ b/composer.json
@@ -5,6 +5,6 @@
     ]
   },
   "require-dev": {
-    "phpunit/phpunit": "^9.5"
+    "phpunit/phpunit": "^9.6"
   }
 }
diff --git a/composer.lock b/composer.lock
index 1366842..31e8407 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": "d04a6a4216eec9684d7a430e94632a78",
+    "content-hash": "6c23f37f66ceb05fd480caba8880c601",
     "packages": [],
     "packages-dev": [
         {