diff --git a/web/docs/object_stores.md b/web/docs/object_stores.md
index cfbc67a..773c4b1 100644
--- a/web/docs/object_stores.md
+++ b/web/docs/object_stores.md
@@ -133,9 +133,12 @@ overhead.
 
 Barman Cloud requires the following permissions in the S3 bucket:
 
+- [`s3:AbortMultipartUpload`](https://docs.aws.amazon.com/AmazonS3/latest/API/API_AbortMultipartUpload.html)
 - [`s3:DeleteObject`](https://docs.aws.amazon.com/AmazonS3/latest/API/API_DeleteObject.html)
 - [`s3:GetObject`](https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetObject.html)
+- [`s3:ListBucketMultipartUploads`](https://docs.aws.amazon.com/AmazonS3/latest/API/API_ListMultipartUploads.html)
 - [`s3:ListBucket`](https://docs.aws.amazon.com/AmazonS3/latest/API/API_ListBuckets.html)
+- [`s3:ListMultipartUploadParts`](https://docs.aws.amazon.com/AmazonS3/latest/API/API_ListParts.html)
 - [`s3:PutObject`](https://docs.aws.amazon.com/AmazonS3/latest/API/API_PutObject.html)
 
 Here's an example of what such a bucket policy may look like:
@@ -145,9 +148,12 @@ Here's an example of what such a bucket policy may look like:
   "Statement": [
     {
       "Action": [
+        "s3:AbortMultipartUpload",
         "s3:DeleteObject",
         "s3:GetObject",
         "s3:ListBucket",
+        "s3:ListBucketMultipartUploads",
+        "s3:ListMultipartUploadParts",
         "s3:PutObject"
       ],
       "Effect": "Allow",