diff --git a/upgrade_nixos b/upgrade_nixos
index e04cfe0..69c780e 100755
--- a/upgrade_nixos
+++ b/upgrade_nixos
@@ -1,10 +1,6 @@
 #!/usr/bin/env ./sshtool
 
-if [ "$CLUSTER" = "staging" -o "$NIXHOST" = "concombre" -o "$NIXHOST" = "courgette" -o "$NIXHOST" = "celeri" -o "$NIXHOST" = "abricot" -o "$NIXHOST" = "df-ymk" -o "$NIXHOST" = "df-ymf" -o "$NIXHOST" = "df-ykl" ]; then
-	cmd nix-channel --add https://nixos.org/channels/nixos-22.11 nixos
-else
-	cmd nix-channel --add https://nixos.org/channels/nixos-22.05 nixos
-fi
+cmd nix-channel --add https://nixos.org/channels/nixos-22.11 nixos
 
 cmd nix-channel --update
 cmd nixos-rebuild boot