diff --git a/backup.sh b/backup.sh
index 697f9c8..96c4818 100644
--- a/backup.sh
+++ b/backup.sh
@@ -49,13 +49,18 @@ gpg --trust-model always --enable-progress-filter --output ~/$BACKUP_FILENAME.gp
 rm ~/$BACKUP_FILENAME
 
 echo "uploading"
-aws s3 cp ~/$BACKUP_FILENAME.gpg s3://$S3_BUCKET_NAME/$BACKUP_FILENAME.gpg --storage-class DEEP_ARCHIVE  || healthchck_fail "Upload Failed"
+AWS_ENDPOINT_OPTION=
+if  [ "$AWS_USE_MINIO" -eq 1 ] ; then
+  aws configure set default.s3.signature_version s3v4
+  AWS_ENDPOINT_OPTION=--endpoint-url https://${MINIO_ENDPOINT}
+fi
+aws ${AWS_ENDPOINT_OPTIOM} s3 cp ~/$BACKUP_FILENAME.gpg s3://$S3_BUCKET_NAME/$BACKUP_FILENAME.gpg --storage-class DEEP_ARCHIVE  || healthchck_fail "Upload Failed"
 rm ~/$BACKUP_FILENAME.gpg
 echo "done"
 
 # On first month day do
 if [ "$month_day" -eq 1 ] ; then
   echo "make monthly backup"
-  aws s3 cp s3://$S3_BUCKET_NAME/$BACKUP_FILENAME.gpg s3://$S3_BUCKET_NAME/$BACKUP_FILENAME_MONTHLY.gpg --storage-class DEEP_ARCHIVE || healthchck_fail "failed to create monthly backup"
+  aws ${AWS_ENDPOINT_OPTIOM} s3 cp s3://$S3_BUCKET_NAME/$BACKUP_FILENAME.gpg s3://$S3_BUCKET_NAME/$BACKUP_FILENAME_MONTHLY.gpg --storage-class DEEP_ARCHIVE || healthchck_fail "failed to create monthly backup"
 fi
 healthchck_ok "Success"