diff --git a/composer.json b/composer.json
index 8a245dc..52e7b56 100644
--- a/composer.json
+++ b/composer.json
@@ -16,7 +16,7 @@
         "task/task": "~0.1",
         "task/phpunit": "~0.1",
         "ext-runkit": "*",
-        "satooshi/php-coveralls": "~0.6"
+        "satooshi/php-coveralls": "^1.0"
     },
     "autoload": {
         "psr-4": {