diff --git a/.github/workflows/github-pages.yml b/.github/workflows/github-pages.yml
index 7f8b106..6c69552 100644
--- a/.github/workflows/github-pages.yml
+++ b/.github/workflows/github-pages.yml
@@ -11,6 +11,10 @@ jobs:
       uses: actions/configure-pages@v3
     - name: Checkout repo
       uses: actions/checkout@v4
+    - uses: actions/cache@v3
+      with:
+        path: /nix
+        key: ${{ runner.os }}-${{ hashFiles("flake.lock") }}
     - name: Install Nix
       uses: DeterminateSystems/nix-installer-action@main
     - name: Build release