diff --git a/api/api/serializers/image_serializers.py b/api/api/serializers/image_serializers.py
index 78e5c668a29..4f0af390d26 100644
--- a/api/api/serializers/image_serializers.py
+++ b/api/api/serializers/image_serializers.py
@@ -1,3 +1,5 @@
+from typing import Literal
+
 from rest_framework import serializers
 
 from api.constants.field_order import field_position_map
@@ -133,14 +135,13 @@ class OembedSerializer(BaseModelSerializer):
     spec: https://oembed.com.
     """
 
-    version = serializers.ReadOnlyField(
+    version = serializers.SerializerMethodField(
         help_text="The oEmbed version number, always set to 1.0.",
-        default="1.0",
     )
-    type = serializers.ReadOnlyField(
+    type = serializers.SerializerMethodField(
         help_text="The resource type, always set to 'photo' for images.",
-        default="photo",
     )
+
     width = serializers.SerializerMethodField(
         help_text="The width of the image in pixels."
     )
@@ -156,6 +157,14 @@ class OembedSerializer(BaseModelSerializer):
         source="creator_url",
     )
 
+    @staticmethod
+    def get_type(*_) -> Literal["photo"]:
+        return "photo"
+
+    @staticmethod
+    def get_version(*_) -> Literal["1.0"]:
+        return "1.0"
+
     class Meta:
         model = Image
         fields = [
diff --git a/api/api/serializers/provider_serializers.py b/api/api/serializers/provider_serializers.py
index 8f2126a8699..c4ed2ae97d1 100644
--- a/api/api/serializers/provider_serializers.py
+++ b/api/api/serializers/provider_serializers.py
@@ -21,14 +21,17 @@ class ProviderSerializer(serializers.ModelSerializer):
         source="domain_name",
         help_text="The URL of the source, e.g. https://www.flickr.com",
     )
-    logo_url = serializers.ReadOnlyField(
-        default=None,
+    logo_url = serializers.SerializerMethodField(
         help_text="The URL to a logo for the source.",
     )
     media_count = serializers.SerializerMethodField(
         help_text="The number of media items indexed from the source.",
     )
 
+    @staticmethod
+    def get_logo_url(*_) -> str | None:
+        return None
+
     class Meta:
         model = ContentProvider
         fields = [