diff --git a/configs/common.nix b/configs/common.nix
index 5ba4df2..44e5f8e 100644
--- a/configs/common.nix
+++ b/configs/common.nix
@@ -91,8 +91,14 @@ in {
       auto-optimise-store = true;
       experimental-features = ["nix-command" "flakes"];
 
-      trusted-substituters = ["https://ghostty.cachix.org"];
-      trusted-public-keys = ["ghostty.cachix.org-1:QB389yTa6gTyneehvqG58y0WnHjQOqgnA+wBnpWWxns="];
+      trusted-substituters = [
+        "https://uku3lig.cachix.org"
+        "https://ghostty.cachix.org"
+      ];
+      trusted-public-keys = [
+        "uku3lig.cachix.org-1:C1/9DNUadh2pueAo+LUkVNUKyIVjF/CREd9RS9E+F2A="
+        "ghostty.cachix.org-1:QB389yTa6gTyneehvqG58y0WnHjQOqgnA+wBnpWWxns="
+      ];
     };
   };