diff --git a/flake.nix b/flake.nix
index 3706d0c..ca23922 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,6 +1,6 @@
 # flake for blakes nixos config
 # define new devices in outputs
-# generation: 281 current  2025-10-11 05:45:24  25.05.20251006.20c4598  6.12.50                          *
+# generation: 282 current  2025-10-11 06:07:58  25.05.20251006.20c4598  6.12.50                          *
 {
   description = "blakes nix config";
   inputs = {
diff --git a/modules/system/backups.nix b/modules/system/backups.nix
index ec7b9f2..e3fcb9c 100644
--- a/modules/system/backups.nix
+++ b/modules/system/backups.nix
@@ -59,7 +59,7 @@ in
             --list \
             --stats \
             --show-rc \
-            --compression lzma,6 \
+            --compression lzma,9 \
             "$BORG_REPO::${toString config.networking.hostName}-$timestamp" \
             ${lib.concatStringsSep " " cfg.paths}