diff --git a/configuration.nix b/configuration.nix
index b5cf422..0a06ad9 100644
--- a/configuration.nix
+++ b/configuration.nix
@@ -65,7 +65,6 @@ in
   };
   system.autoUpgrade.enable = config.services.userdata.autoUpgrade.enable;
   system.autoUpgrade.allowReboot = config.services.userdata.autoUpgrade.allowReboot;
-  system.autoUpgrade.channel = https://nixos.org/channels/nixos-21.05-small;
   nix = {
     optimise.automatic = true;
     gc = {