diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index dcfc546..c2e3976 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -14,6 +14,7 @@ jobs:
       # Use cachix action over detsys for testing with act.
       # - uses: cachix/install-nix-action@v27
       - uses: DeterminateSystems/nix-installer-action@main
+      - uses: DeterminateSystems/magic-nix-cache-action@main
 
       - name: Download Dependencies
         run: nix-build --no-out-link --expr '((import ./ci/matrix.nix) { qtver = "${{ matrix.qtver }}"; compiler = "${{ matrix.compiler }}"; }).unwrapped.inputDerivation'
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index da329cc..35ac4e0 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -10,6 +10,7 @@ jobs:
       # Use cachix action over detsys for testing with act.
       # - uses: cachix/install-nix-action@v27
       - uses: DeterminateSystems/nix-installer-action@main
+      - uses: DeterminateSystems/magic-nix-cache-action@main
       - uses: nicknovitski/nix-develop@v1
 
       - name: Check formatting