diff --git a/composer.json b/composer.json
index ebb514b..4568bb7 100644
--- a/composer.json
+++ b/composer.json
@@ -19,7 +19,7 @@
         "issues": "https://github.com/ppi/datasource/issues"
     },
     "require": {
-        "ppi/framework": "dev-master",
+        "ppi/framework": "~2.1.0-alpha2",
         "doctrine/dbal": "2.5.*@dev"
     },
     "autoload": {