fixed BlockBundle dependency

composer.json

@@ -29,7 +29,7 @@
         "knplabs/knp-menu-bundle": "~1.1",
         "sonata-project/jquery-bundle": "1.8.*",
         "sonata-project/exporter": "1.*",
-        "sonata-project/block-bundle": "~2.2.1",
+        "sonata-project/block-bundle": "~2.2,>=2.2.1",
         "doctrine/common": "~2.2"
     },
     "require-dev": {