diff --git a/api/nodes/serializers.py b/api/nodes/serializers.py
index 63cca6b8550..e723d6e5524 100644
--- a/api/nodes/serializers.py
+++ b/api/nodes/serializers.py
@@ -247,7 +247,6 @@ class NodeSerializer(TaxonomizableSerializerMixin, JSONAPISerializer):
     # list if it doesn't expose user data
     non_anonymized_fields = [
         'access_requests_enabled',
-        'affiliated_institutions',
         'affiliate_user_institutions',
         'analytics_key',
         'category',
@@ -265,7 +264,6 @@ class NodeSerializer(TaxonomizableSerializerMixin, JSONAPISerializer):
         'fork',
         'forked_from',
         'id',
-        'identifiers',
         'license',
         'linked_by_nodes',
         'linked_by_registrations',
diff --git a/api/registrations/serializers.py b/api/registrations/serializers.py
index 6d3637c0cba..a87b874381b 100644
--- a/api/registrations/serializers.py
+++ b/api/registrations/serializers.py
@@ -50,21 +50,12 @@ class RegistrationSerializer(NodeSerializer):
     # if you don't need them to be anonymized
     non_anonymized_fields = NodeSerializer.non_anonymized_fields + [
         'archiving',
-        'article_doi',
         'date_registered',
         'date_withdrawn',
-        'embargo_end_date',
-        'embargoed',
         'latest_response',
         'original_response',
-        'pending_embargo_approval',
-        'pending_embargo_termination_approval',
-        'pending_registration_approval',
-        'pending_withdrawal',
         'provider',
         'provider_specific_metadata',
-        'registered_by',
-        'registered_from',
         'registered_meta',
         'registration_responses',
         'registration_schema',