diff --git a/apps/product/web/api/v1/serializers/quota_serializers.py b/apps/product/web/api/v1/serializers/quota_serializers.py
index 94d972a..edff18a 100644
--- a/apps/product/web/api/v1/serializers/quota_serializers.py
+++ b/apps/product/web/api/v1/serializers/quota_serializers.py
@@ -75,16 +75,18 @@ class QuotaSerializer(serializers.ModelSerializer):
         instance.save()
 
         # update assigned organization many to many
-        instance.assigned_organizations.clear()
-        instance.assigned_organizations.add(
-            *(validated_data.get('assigned_organizations', instance.assigned_organizations))
-        )
+        if 'assigned_organizations' in validated_data.keys():
+            instance.assigned_organizations.clear()
+            instance.assigned_organizations.add(
+                *(validated_data.get('assigned_organizations', instance.assigned_organizations))
+            )
 
         # update organization limit many to many
-        instance.limit_by_organizations.clear()
-        instance.limit_by_organizations.add(
-            *(validated_data.get('limit_by_organizations', instance.limit_by_organizations))
-        )
+        if 'assigned_organizations' in validated_data.keys():
+            instance.limit_by_organizations.clear()
+            instance.limit_by_organizations.add(
+                *(validated_data.get('limit_by_organizations', instance.limit_by_organizations))
+            )
 
         return instance