diff --git a/graphene_sqlalchemy/converter.py b/graphene_sqlalchemy/converter.py
index 4ff55eed..dee49305 100644
--- a/graphene_sqlalchemy/converter.py
+++ b/graphene_sqlalchemy/converter.py
@@ -6,7 +6,7 @@
 from sqlalchemy.orm import interfaces
 
 from graphene import (ID, Boolean, Dynamic, Enum, Field, Float, Int, List,
-                      String)
+                      NonNull, String)
 from graphene.types.json import JSONString
 
 from .enums import enum_for_sa_enum
@@ -46,7 +46,8 @@ def dynamic_type():
                 # TODO Add a way to override connection_field_factory
                 return connection_field_factory(relationship_prop, registry, **field_kwargs)
             return Field(
-                List(_type),
+                List(NonNull(_type)),
+                required=True,
                 **field_kwargs
             )
 
diff --git a/graphene_sqlalchemy/tests/test_converter.py b/graphene_sqlalchemy/tests/test_converter.py
index e8051a18..148b8c30 100644
--- a/graphene_sqlalchemy/tests/test_converter.py
+++ b/graphene_sqlalchemy/tests/test_converter.py
@@ -209,8 +209,12 @@ class Meta:
     assert isinstance(dynamic_field, graphene.Dynamic)
     graphene_type = dynamic_field.get_type()
     assert isinstance(graphene_type, graphene.Field)
-    assert isinstance(graphene_type.type, graphene.List)
-    assert graphene_type.type.of_type == A
+    assert isinstance(graphene_type.type, graphene.NonNull)
+    list_type = graphene_type.type.of_type
+    assert isinstance(list_type, graphene.List)
+    list_element_type = list_type.of_type
+    assert isinstance(list_element_type, graphene.NonNull)
+    assert list_element_type.of_type == A
 
 
 def test_should_manytomany_convert_connectionorlist_connection():
diff --git a/graphene_sqlalchemy/tests/test_types.py b/graphene_sqlalchemy/tests/test_types.py
index fda8e659..789b5e8f 100644
--- a/graphene_sqlalchemy/tests/test_types.py
+++ b/graphene_sqlalchemy/tests/test_types.py
@@ -219,8 +219,12 @@ class Meta:
 
     pets_field = ReporterType._meta.fields['pets']
     assert isinstance(pets_field, Dynamic)
-    assert isinstance(pets_field.type().type, List)
-    assert pets_field.type().type.of_type == PetType
+    assert isinstance(pets_field.type().type, NonNull)
+    list_type = pets_field.type().type.of_type
+    assert isinstance(list_type, List)
+    list_element_type = list_type.of_type
+    assert isinstance(list_element_type, NonNull)
+    assert list_element_type.of_type == PetType
     assert pets_field.type().description == 'Overridden'