diff --git a/modules/nixos/common/otf.nix b/modules/nixos/common/otf.nix
index 887ad6c..7401d95 100644
--- a/modules/nixos/common/otf.nix
+++ b/modules/nixos/common/otf.nix
@@ -70,7 +70,15 @@ in
         }
       ];
     };
+    # With a database comes a dumping.
+    services.postgresqlBackup = {
+      enable = true;
+      compression = "zstd";
+      compressionLevel = 11;
 
+      # Start at every 3 days starting from the first day of the month.
+      startAt = "*-*-1/3";
+    };
     systemd.services.otf = {
       description = "Open Terraform Framework";
       after = [