diff --git a/.github/workflows/update.yml b/.github/workflows/update.yml
index 4519327..2989f3d 100644
--- a/.github/workflows/update.yml
+++ b/.github/workflows/update.yml
@@ -10,7 +10,20 @@ jobs:
     name: parse options and create search
     steps:
 
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
+
+      - uses: cachix/install-nix-action@v23
+        with:
+          nix_path: nixpkgs=channel:nixos-unstable
+#     - uses: cachix/cachix-action@v13
+#       with:
+#         name: nix-community
+#         authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
+
+      - run: git clone https://github.com/nix-community/home-manager.git
+      - run: |
+        #nix-build -A docs.html
+          nix-build -A docs.json
 
       - uses: ruby/setup-ruby@v1
         with: