diff --git a/guillotina_s3storage/storage.py b/guillotina_s3storage/storage.py
index 6f54af5..64b6ce8 100644
--- a/guillotina_s3storage/storage.py
+++ b/guillotina_s3storage/storage.py
@@ -465,10 +465,11 @@ async def delete_blobs(self, keys: List[str], bucket_name: Optional[str] = None)
                 }
             }
 
-            raw_response = await client.delete_objects(**args)
-            response = raw_response.json()
-            success_keys = [o["Key"] for o in response["Deleted"]]
-            failed_keys = [o["Key"] for o in response["Errors"]]
+            response = await client.delete_objects(**args)
+            success_blobs = response.get("Deleted", [])
+            success_keys = [o["Key"] for o in success_blobs]
+            failed_blobs = response.get("Errors", [])
+            failed_keys = [o["Key"] for o in failed_blobs]
 
             return success_keys, failed_keys