diff --git a/composer.json b/composer.json
index 056a02f89b..337010ab56 100755
--- a/composer.json
+++ b/composer.json
@@ -66,7 +66,7 @@
 
         "symfony-cmf/routing-bundle": "~1.1",
 
-        "knplabs/gaufrette": "~0.1.6",
+        "knplabs/gaufrette": "~0.2",
         "knplabs/knp-menu-bundle": "~2.2",
 
         "sonata-project/easy-extends-bundle": "~2.1@dev",
@@ -82,7 +82,7 @@
         "sonata-project/cache-bundle": "~2.1@dev",
         "sonata-project/cache": "~1.0@dev",
         "sonata-project/page-bundle": "~3.0",
-        "sonata-project/core-bundle": "~3.0",
+        "sonata-project/core-bundle": "3.12.0",
         "sonata-project/formatter-bundle": "~3.0",
         "sonata-project/datagrid-bundle": "~2.3",
         "sonata-project/exporter": "~1.3@dev",