diff --git a/.gitea/workflows/validate-nixos-config.yml b/.gitea/workflows/validate-nixos-config.yml
index 243b000..870d6c9 100644
--- a/.gitea/workflows/validate-nixos-config.yml
+++ b/.gitea/workflows/validate-nixos-config.yml
@@ -13,7 +13,10 @@ jobs:
     runs-on: nixos  # This assumes you have a runner with the "flakes-action" label
     steps:
       - name: Install Node.js
-        run: nix-env -i nixpkgs.nodejs-slim
+        run: |
+          nix-channel --add https://nixos.org/channels/nixpkgs-unstable nixpkgs
+          nix-channel --update
+          nix-env -i nodejs-slim
 
       - name: Checkout repository
         uses: actions/checkout@v3