diff --git a/backup.sh b/backup.sh
index 53acf3f..384326b 100755
--- a/backup.sh
+++ b/backup.sh
@@ -33,7 +33,7 @@ tmpgpg --import ./pubkey.asc
 tar \
         --create \
         --verbose \
-        --xz \
+        --gzip \
         --one-file-system \
         --file - \
         "${backup_source}" \
@@ -45,4 +45,4 @@ tar \
         s3 cp \
         --storage-class=DEEP_ARCHIVE \
         - \
-        "s3://${bucket}/${name}-$(date --utc -Iseconds).tar.xz.gpg"
+        "s3://${bucket}/${name}-$(date --utc -Iseconds).tar.gz.gpg"