diff --git a/lambdas/shared/src/common/aws_s3_utils.py b/lambdas/shared/src/common/aws_s3_utils.py
index 22291daa3..fefd90a50 100644
--- a/lambdas/shared/src/common/aws_s3_utils.py
+++ b/lambdas/shared/src/common/aws_s3_utils.py
@@ -30,6 +30,7 @@ def copy_file_to_external_bucket(
         Key=destination_key,
         ExpectedBucketOwner=expected_bucket_owner,
         ExpectedSourceBucketOwner=expected_source_bucket_owner,
+        ACL="bucket-owner-full-control",
     )