diff --git a/graphene_django/fields.py b/graphene_django/fields.py
index 513fb0b..7437b3b 100644
--- a/graphene_django/fields.py
+++ b/graphene_django/fields.py
@@ -164,7 +164,7 @@ class DjangoConnectionField(ConnectionField):
             if qs is None:
                 qs = default_manager.filter()
             if _parent and root is not None:
-                return map(lambda instance: set_parent(instance, root), qs)
+                return list(map(lambda instance: set_parent(instance, root), qs))
             return qs
 
         return cls.connection_resolver_original(
diff --git a/graphene_django/filter/fields.py b/graphene_django/filter/fields.py
index 62104a9..11beca8 100644
--- a/graphene_django/filter/fields.py
+++ b/graphene_django/filter/fields.py
@@ -158,7 +158,7 @@ class DjangoFilterConnectionField(DjangoConnectionField):
             # set parent to child fields
             # in ''_parent'' attribute
             if _parent and root is not None:
-                return map(lambda instance: set_parent(instance, root), qs)
+                return list(map(lambda instance: set_parent(instance, root), qs))
             return qs
 
         if custom_resolver: