diff --git a/.gitea/workflows/checks.yaml b/.gitea/workflows/checks.yaml
index 15da538..16cd35c 100644
--- a/.gitea/workflows/checks.yaml
+++ b/.gitea/workflows/checks.yaml
@@ -7,5 +7,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
+    - name: Install dependencies for Nix setup action
+      run: |
+        apt update -y
+        apt install sudo -y
     - uses: cachix/install-nix-action@v27
-    - run: nix-build
+    - run: nix flake check