diff --git a/.forgejo/workflows/demo.yaml b/.forgejo/workflows/demo.yaml
index b3b5ece..3c3c311 100644
--- a/.forgejo/workflows/demo.yaml
+++ b/.forgejo/workflows/demo.yaml
@@ -6,7 +6,7 @@ jobs:
       - name: checkout
         uses: actions/checkout@v3
 
-      - uses: cachix/install-nix-action@v27
+      - uses: https://github.com/cachix/install-nix-action@v27
         with:
           nix_path: nixpkgs=channel:nixos-unstable
         - run: nix develop