diff --git a/composer.json b/composer.json
index 9804e2b..eb4e272 100644
--- a/composer.json
+++ b/composer.json
@@ -5,7 +5,7 @@
     "homepage": "https://github.com/carlosbuenosvinos/php-kata",
     "type": "library",
     "require-dev": {
-        "phpunit/phpunit": "3.8.*@dev",
+        "phpunit/phpunit": "3.7.*@dev",
         "mockery/mockery": "dev-master@dev",
         "phpspec/phpspec": "2.0.*@dev"
     },