Use new style of `required=<bool>` not `blank` or `null`

2 files changed, 2 insertions, 2 deletions

diff --git a/rest_framework/tests/relations_slug.py b/rest_framework/tests/relations_slug.py
index ef829210..a325f6ea 100644
--- a/rest_framework/tests/relations_slug.py
+++ b/rest_framework/tests/relations_slug.py
@@ -18,7 +18,7 @@ class ForeignKeySourceSerializer(serializers.ModelSerializer):
 
 
 class NullableForeignKeySourceSerializer(serializers.ModelSerializer):
-    target = serializers.SlugRelatedField(slug_field='name', null=True)
+    target = serializers.SlugRelatedField(slug_field='name', required=False)
 
     class Meta:
         model = NullableForeignKeySource
diff --git a/rest_framework/tests/serializer.py b/rest_framework/tests/serializer.py
index 57429e2e..62de16ab 100644
--- a/rest_framework/tests/serializer.py
+++ b/rest_framework/tests/serializer.py
@@ -802,7 +802,7 @@ class BlankFieldTests(TestCase):
                 model = BlankFieldModel
 
         class BlankFieldSerializer(serializers.Serializer):
-            title = serializers.CharField(blank=True)
+            title = serializers.CharField(required=False)
 
         class NotBlankFieldModelSerializer(serializers.ModelSerializer):
             class Meta: