diff --git a/author/serializers.py b/author/serializers.py
index 7641d4b..f51517c 100644
--- a/author/serializers.py
+++ b/author/serializers.py
@@ -14,7 +14,7 @@ class AuthorSerializer(serializers.ModelSerializer):
 
     class Meta:
         model = Author
-        fields = ["id",
+        fields = ["pk",
                   "first_name",
                   "last_name",
                   "pseudonym",