diff --git a/composer.json b/composer.json
index 064f10f..aad12a6 100644
--- a/composer.json
+++ b/composer.json
@@ -22,7 +22,7 @@
         "php" : ">=5.4.0",
         "rougin/blueprint": "~0.1",
         "rougin/describe": "~1.4",
-        "rougin/spark-plug": "~0.4"
+        "rougin/spark-plug": "~0.4.2"
     },
     "require-dev": {
         "phpunit/phpunit" : "4.*",