diff --git a/setup.sh b/setup.sh
index 90cbaab..6e46ef0 100755
--- a/setup.sh
+++ b/setup.sh
@@ -136,9 +136,7 @@ install_nix() {
     fi
 
     log_info "Nix not detected, installing Nix..."
-    if ! sh <(curl -L https://nixos.org/nix/install) --daemon; then
-        die "Failed to install Nix"
-    fi
+    curl --proto '=https' --tlsv1.2 -sSf -L https://install.determinate.systems/nix | sh || die "Failed to install Nix"
 
     log_success "Nix has been installed. Please open a new shell and re-run the script."
     log_info "'~/dotfiles/setup.sh --continue' to continue setup."