diff --git a/nix/metal/explorer/aux-config.nix b/nix/metal/explorer/aux-config.nix
index ffc97d7d6..533c9d76f 100644
--- a/nix/metal/explorer/aux-config.nix
+++ b/nix/metal/explorer/aux-config.nix
@@ -14,7 +14,7 @@ in
 {
   mainnet = lib.recursiveUpdate default {
     explorerHostName = "explorer.cardano.org";
-    explorerAliases = ["explorer.mainnet.cardano.org" "explorer.cardano-mainnet.iohk.io"];
+    explorerAliases = ["explorer.cardano-mainnet.iohk.io"];
 
     # WG_PUBKEY: wg pubkey < <(sops -d nix/metal/encrypted/wg/$AWS_EXT_NODES_NODENAME-private)
     # Attr struct: {name = $AWS_EXT_NODES_NODENAME; publicKey = $WG_PUBKEY;}