diff --git a/nix/configuration/configuration.nix b/nix/configuration/configuration.nix
index c0075ba..6f24b71 100644
--- a/nix/configuration/configuration.nix
+++ b/nix/configuration/configuration.nix
@@ -92,7 +92,7 @@
     # Runs nix-collect-garbage --delete-older-than 5d
     automatic = true;
     randomizedDelaySec = "14m";
-    options = "--delete-older-than 5d";
+    options = "--delete-older-than 30d";
   };
 
   # Use doas instead of sudo