diff -r bc18286e55b2 -r 4fca650b9b8a server/src/composer.json
--- a/server/src/composer.json	Tue Feb 23 17:57:46 2016 +0100
+++ b/server/src/composer.json	Tue Feb 23 18:52:27 2016 +0100
@@ -7,7 +7,7 @@
     "require": {
         "php": ">=5.5.9",
         "laravel/framework": "5.2.*",
-        "easyrdf/easyrdf": "*@dev",
+        "easyrdf/easyrdf": "dev-master",
         "ml/json-ld": "*",
         "caseyamcl/phpoaipmh": "~2.4",
         "guzzlehttp/guzzle":   "~6.1",
@@ -56,6 +56,8 @@
             "php artisan optimize"
         ]
     },
+    "minimum-stability": "dev",
+    "prefer-stable": true,
     "config": {
         "preferred-install": "dist"
     }