diff --git a/composer.json b/composer.json
index ee6c04414..95a2ae7b0 100644
--- a/composer.json
+++ b/composer.json
@@ -24,7 +24,7 @@
         "php": "^7.1",
         "friendsofsymfony/user-bundle": "^2.0",
         "sonata-project/admin-bundle": "^3.34",
-        "sonata-project/core-bundle": "^3.12",
+        "sonata-project/core-bundle": "^3.18",
         "sonata-project/datagrid-bundle": "^2.2.1",
         "sonata-project/doctrine-extensions": "^1.5.1",
         "sonata-project/easy-extends-bundle": "^2.2",
@@ -32,7 +32,7 @@
         "symfony/config": "^3.4 || ^4.2",
         "symfony/console": "^3.4 || ^4.2",
         "symfony/dependency-injection": "^3.4 || ^4.2",
-        "symfony/form": "^3.4 || ^4.2",
+        "symfony/form": "^3.4.31 || ^4.3.4",
         "symfony/framework-bundle": "^3.4 || ^4.2",
         "symfony/http-foundation": "^3.4 || ^4.2",
         "symfony/http-kernel": "^3.4 || ^4.2",