diff --git a/.github/workflows/checks.yml b/.github/workflows/checks.yml
index 63b1b20e23..a7c815c7b0 100644
--- a/.github/workflows/checks.yml
+++ b/.github/workflows/checks.yml
@@ -12,6 +12,6 @@ jobs:
         uses: DeterminateSystems/flake-checker-action@v5
       - name: Install Nix
         uses: DeterminateSystems/nix-installer-action@v4
+      - uses: DeterminateSystems/magic-nix-cache-action@v2
       - name: Build Nix package
-        run: nix build
-
+        run: nix flake check