diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 3acf834a..f621254d 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -12,8 +12,12 @@ jobs:
     strategy:
       matrix:
         # Intel mac excluded; See https://github.com/juspay/services-flake/issues/231
-        system: [ x86_64-linux, aarch64-darwin ]
+        system: [x86_64-linux, aarch64-darwin]
     steps:
       - uses: actions/checkout@v4
+      - uses: cachix/cachix-action@v14
+        with:
+          name: services-flake
+          authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
       - name: om ci
         run: om ci --extra-access-tokens "github.com=${{ secrets.GITHUB_TOKEN }}" run --systems "${{ matrix.system }}"