diff --git a/serverle.nix b/serverle.nix
index 1644a89..3b5b560 100644
--- a/serverle.nix
+++ b/serverle.nix
@@ -28,7 +28,7 @@
   nix.gc.automatic = true;
   nix.gc.options = "--delete-older-than 30d";
 
-  system.stateVersion = "20.09";
+  system.stateVersion = "21.05";
   system.autoUpgrade.enable = true;
-  system.autoUpgrade.channel = https://nixos.org/channels/nixos-20.09;
+  system.autoUpgrade.channel = https://nixos.org/channels/nixos-21.05;
 }