diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 76d8d14..4d011b8 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -12,6 +12,7 @@ jobs:
           fetch-depth: 0
     - name: Install Nix
       uses: DeterminateSystems/nix-installer-action@v4
+    - uses: DeterminateSystems/magic-nix-cache-action@main
     - run: nix-build
   test:
     strategy: