diff --git a/oscar/configuration.nix b/oscar/configuration.nix
index 3caa3e9..7836c66 100644
--- a/oscar/configuration.nix
+++ b/oscar/configuration.nix
@@ -178,9 +178,7 @@
 
       # Unfree:
       discord
-      (import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/348ec8c846cce39c467cac90ddbbc9ce9bf61bd8.tar.gz") {
-        config.allowUnfree = true;
-      }).factorio-space-age
+      factorio-space-age
     ];
 
     programs.thunderbird.enable = true;