diff --git a/apps/authentication/api/v1/serializers/serializer.py b/apps/authentication/api/v1/serializers/serializer.py
index 7f819e2..e2b9ad6 100644
--- a/apps/authentication/api/v1/serializers/serializer.py
+++ b/apps/authentication/api/v1/serializers/serializer.py
@@ -382,6 +382,7 @@ class OrganizationSerializer(serializers.ModelSerializer):
         instance.address = validated_data.get('address', instance.address)
         instance.parent_organization = validated_data.get('parent_organization', instance.parent_organization)
         instance.national_unique_id = validated_data.get('national_unique_id', instance.national_unique_id)
+        instance.unique_unit_identity = validated_data.get('unique_unit_identity', instance.unique_unit_identity)
         instance.purchase_policy = validated_data.get('purchase_policy', instance.purchase_policy)
         instance.free_visibility_by_scope = validated_data.get(
             'free_visibility_by_scope',