diff --git a/masterNode/composer.json b/masterNode/composer.json
index 00e5542..3493f56 100644
--- a/masterNode/composer.json
+++ b/masterNode/composer.json
@@ -13,7 +13,7 @@
     "require-dev": {
         "fzaninotto/faker": "1.9.1",
         "mockery/mockery": "0.9.11",
-        "phpunit/phpunit": "9.2.6"
+        "phpunit/phpunit": "9.5.4"
     },
     "autoload": {
         "classmap": [