diff --git a/composer.json b/composer.json
index 530a5f6..80de46d 100644
--- a/composer.json
+++ b/composer.json
@@ -25,7 +25,7 @@
     },
     "require-dev": {
         "behat/behat": "^3.14",
-        "phpunit/phpunit": "^11.0"
+        "phpunit/phpunit": "^13.0"
     },
     "autoload": {
         "psr-4": { "Watson\\": "src/" }
diff --git a/fixtures/laravel-app/composer.json b/fixtures/laravel-app/composer.json
index 9f9e6b3..2b9d9a0 100644
--- a/fixtures/laravel-app/composer.json
+++ b/fixtures/laravel-app/composer.json
@@ -7,7 +7,7 @@
         "php": "^8.4",
         "hellpat/watson": "@dev",
         "laravel/framework": "^13.0",
-        "phpunit/phpunit": "^11.0"
+        "phpunit/phpunit": "^13.0"
     },
     "repositories": [
         { "type": "path", "url": "../..", "options": { "symlink": true } }