diff --git a/Test/Fixtures/App/app/config/config.yml b/Test/Fixtures/App/app/config/config.yml
index be6e8f94e..a73bfb2ec 100644
--- a/Test/Fixtures/App/app/config/config.yml
+++ b/Test/Fixtures/App/app/config/config.yml
@@ -22,6 +22,8 @@ doctrine:
         user:     "%database_user%"
         password: "%database_password%"
         charset:  UTF8
+        mapping_types:
+            jsonb: json_array
     orm:
         auto_generate_proxy_classes: "%kernel.debug%"
         auto_mapping: true