diff --git a/composer.json b/composer.json
index 40fa34c..26c7a84 100644
--- a/composer.json
+++ b/composer.json
@@ -15,7 +15,7 @@
   },
   "require-dev": {
     "composer/composer": "^2.0",
-    "phpunit/phpunit": "^9.5",
+    "phpunit/phpunit": "^11.5",
     "mockery/mockery": "^1.4",
     "nunomaduro/collision": "^5.8",
     "squizlabs/php_codesniffer": "^3.6"