diff --git a/btrbk/btrbk.conf b/btrbk/btrbk.conf
index 419c2ad..47f12d3 100644
--- a/btrbk/btrbk.conf
+++ b/btrbk/btrbk.conf
@@ -1,10 +1,11 @@
 timestamp_format          long
-snapshot_preserve_min     2h
-snapshot_preserve         24h 7d 4w
+snapshot_preserve_min     48h
+snapshot_preserve         24h 7d 4w 1m
+target_preserve           24h 7d 4w 6m 3y
 backend_local_user        btrfs-progs-sudo
 stream_buffer             256m
 lockfile                  /var/lock/btrbk.lock
-btrfs_commit_delete       no
+btrfs_commit_delete       yes
 snapshot_dir              .btrbk_snapshots
 # snapshot_create        ondemand