diff --git a/composer.json b/composer.json
index d5172c4..459747e 100644
--- a/composer.json
+++ b/composer.json
@@ -14,7 +14,7 @@
   },
   "require-dev": {
     "graham-campbell/testbench": "^6.0",
-    "phpunit/phpunit": "^10.0"
+    "phpunit/phpunit": "^12.3"
   },
   "autoload": {
     "psr-4": {