diff --git a/workstation/configuration.nix b/workstation/configuration.nix
index 4f81fa0..9d599db 100644
--- a/workstation/configuration.nix
+++ b/workstation/configuration.nix
@@ -209,4 +209,9 @@
       };
     };
   };
+  nix.gc = {
+    automatic = true;
+    dates = "1w";
+    options = "-d";
+  };
 }