diff --git a/.gitea/workflows/build-and-publish.yaml b/.gitea/workflows/build-and-publish.yaml
index de075b8..be39d42 100644
--- a/.gitea/workflows/build-and-publish.yaml
+++ b/.gitea/workflows/build-and-publish.yaml
@@ -22,13 +22,10 @@ jobs:
         uses: cachix/install-nix-action@v26
         with:
           nix_path: nixpkgs=channel:nixos-unstable
-          extra_nix_config: |
-            sandbox = false
-            filter-syscalls = false
 
       - name: Build Docker Image via Nix Flake
         run: |
-          nix build ./build/#dockerImage
+          nix build --option sandbox false ./build/#dockerImage
           docker load -i result
 
       - name: Log in to Gitea Container Registry