diff --git a/composer.json b/composer.json
index 393129a..aa130d0 100755
--- a/composer.json
+++ b/composer.json
@@ -22,7 +22,7 @@
         "symfony/dependency-injection": "~2.4",
         "symfony/filesystem": "~2.4",
         "symfony/http-kernel": "~2.4",
-        "janschumann/classloader_composer": "dev-master"
+        "janschumann/classloader_composer": "~1.0@dev"
     },
     "require-dev": {
         "phpunit/phpunit": "~4.4"