diff --git a/modules/periodic.nix b/modules/periodic.nix
index 4d9a037..6b683f4 100644
--- a/modules/periodic.nix
+++ b/modules/periodic.nix
@@ -22,4 +22,12 @@
       Unit = "git-pull.service";
     };
   };
+
+  # PostgreSQL daily backups
+  services.postgresqlBackup = {
+    enable = true;
+    backupAll = true;
+    location = "/vault/backups/databases/nextcloud";
+    startAt = "*-*-* 05:15:00";
+  };
 }