diff --git a/openedx/core/djangoapps/content_libraries/serializers.py b/openedx/core/djangoapps/content_libraries/serializers.py
index d639ed63afb0..c2a26220d4c7 100644
--- a/openedx/core/djangoapps/content_libraries/serializers.py
+++ b/openedx/core/djangoapps/content_libraries/serializers.py
@@ -276,7 +276,7 @@ class ContentLibraryCollectionUpdateSerializer(serializers.Serializer):
     description = serializers.CharField(allow_blank=True)
 
 
-class UsageKeyV2Serializer(serializers.Serializer):
+class UsageKeyV2Serializer(serializers.BaseSerializer):
     """
     Serializes a UsageKeyV2.
     """