diff --git a/composer.json b/composer.json
index a3c3493..ef2aed8 100644
--- a/composer.json
+++ b/composer.json
@@ -27,8 +27,9 @@
     "blog": "https://blog.zemit.com/",
     "forum": "https://forum.zemit.com/"
   },
+  "minimum-stability": "dev",
   "require": {
-    "zemit-cms/core": "0.3"
+    "zemit-cms/core": "dev-master"
   },
   "extra": {
     "installer-paths": {