diff --git a/composer.json b/composer.json
index 0116094..61c2997 100644
--- a/composer.json
+++ b/composer.json
@@ -11,6 +11,6 @@
 	"prefer-stable": true,
 	"require": {
 		"php": ">=5.2",
-		"composer/installers": "~1"
+		"composer/installers": "~1 || ~0"
 	}
 }