diff --git a/composer.json b/composer.json
index f1cacea..9d265b5 100644
--- a/composer.json
+++ b/composer.json
@@ -5,7 +5,7 @@
       "php": ">=5.4.0"
     },
     "require-dev": {
-        "satooshi/php-coveralls": "^1.0",
+        "satooshi/php-coveralls": "^2.1",
         "phpspec/phpspec": "^2.0.0",
         "henrikbjorn/phpspec-code-coverage": "^2.1",
         "sllh/php-cs-fixer-styleci-bridge": "^2.1"