diff --git a/examples/cookbook-plain/cookbook/ingredients/schema.py b/examples/cookbook-plain/cookbook/ingredients/schema.py
index 1a54c4b..24a5e95 100644
--- a/examples/cookbook-plain/cookbook/ingredients/schema.py
+++ b/examples/cookbook-plain/cookbook/ingredients/schema.py
@@ -7,11 +7,13 @@ from .models import Category, Ingredient
 class CategoryType(DjangoObjectType):
     class Meta:
         model = Category
+        fields = "__all__"
 
 
 class IngredientType(DjangoObjectType):
     class Meta:
         model = Ingredient
+        fields = "__all__"
 
 
 class Query(object):
diff --git a/examples/cookbook-plain/cookbook/recipes/schema.py b/examples/cookbook-plain/cookbook/recipes/schema.py
index b029570..aa7fd2d 100644
--- a/examples/cookbook-plain/cookbook/recipes/schema.py
+++ b/examples/cookbook-plain/cookbook/recipes/schema.py
@@ -7,11 +7,13 @@ from .models import Recipe, RecipeIngredient
 class RecipeType(DjangoObjectType):
     class Meta:
         model = Recipe
+        fields = "__all__"
 
 
 class RecipeIngredientType(DjangoObjectType):
     class Meta:
         model = RecipeIngredient
+        fields = "__all__"
 
 
 class Query(object):
diff --git a/examples/cookbook/cookbook/ingredients/schema.py b/examples/cookbook/cookbook/ingredients/schema.py
index 5e5da80..43b6118 100644
--- a/examples/cookbook/cookbook/ingredients/schema.py
+++ b/examples/cookbook/cookbook/ingredients/schema.py
@@ -10,6 +10,7 @@ class CategoryNode(DjangoObjectType):
     class Meta:
         model = Category
         interfaces = (Node,)
+        fields = "__all__"
         filter_fields = ["name", "ingredients"]
 
 
@@ -18,6 +19,7 @@ class IngredientNode(DjangoObjectType):
         model = Ingredient
         # Allow for some more advanced filtering here
         interfaces = (Node,)
+        fields = "__all__"
         filter_fields = {
             "name": ["exact", "icontains", "istartswith"],
             "notes": ["exact", "icontains"],
diff --git a/examples/cookbook/cookbook/recipes/schema.py b/examples/cookbook/cookbook/recipes/schema.py
index fbbedd8..c7298aa 100644
--- a/examples/cookbook/cookbook/recipes/schema.py
+++ b/examples/cookbook/cookbook/recipes/schema.py
@@ -8,6 +8,7 @@ class RecipeNode(DjangoObjectType):
     class Meta:
         model = Recipe
         interfaces = (Node,)
+        fields = "__all__"
         filter_fields = ["title", "amounts"]
 
 
@@ -16,6 +17,7 @@ class RecipeIngredientNode(DjangoObjectType):
         model = RecipeIngredient
         # Allow for some more advanced filtering here
         interfaces = (Node,)
+        fields = "__all__"
         filter_fields = {
             "ingredient__name": ["exact", "icontains", "istartswith"],
             "recipe": ["exact"],
diff --git a/examples/starwars/schema.py b/examples/starwars/schema.py
index fb22840..4bc26e9 100644
--- a/examples/starwars/schema.py
+++ b/examples/starwars/schema.py
@@ -12,6 +12,7 @@ class Ship(DjangoObjectType):
     class Meta:
         model = ShipModel
         interfaces = (relay.Node,)
+        fields = "__all__"
 
     @classmethod
     def get_node(cls, info, id):
@@ -22,12 +23,14 @@ class Ship(DjangoObjectType):
 class Character(DjangoObjectType):
     class Meta:
         model = CharacterModel
+        fields = "__all__"
 
 
 class Faction(DjangoObjectType):
     class Meta:
         model = FactionModel
         interfaces = (relay.Node,)
+        fields = "__all__"
 
     @classmethod
     def get_node(cls, info, id):