diff --git a/action.yml b/action.yml
index 3b1e77f..abccee9 100644
--- a/action.yml
+++ b/action.yml
@@ -15,8 +15,6 @@ runs:
     - name: Setup NIX CI Environment
       run: |
         mkdir -p ~/.config/nix && cp /etc/nix/nix.conf ~/.config/nix/
-        echo "substituters = https://nixpkgs-cache.qo.is?priority=39" >> ~/.config/nix/nix.conf
-        echo "trusted-public-keys = cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=" >> ~/.config/nix/nix.conf
         nix profile install nixpkgs#git-lfs nixpkgs#gnused
 
     - name: Checkout Repository