diff --git a/composer.json b/composer.json
index 56ee96e..288e8ab 100644
--- a/composer.json
+++ b/composer.json
@@ -11,7 +11,7 @@
     },
 
     "require-dev": {
-        "phpunit/phpunit": "^9.5",
+        "phpunit/phpunit": "^9.6",
         "squizlabs/php_codesniffer": "^3.7",
         "vimeo/psalm": "^4.22"
     },