diff --git a/.github/workflows/github-pages.yml b/.github/workflows/github-pages.yml
index 0240050..50f395b 100644
--- a/.github/workflows/github-pages.yml
+++ b/.github/workflows/github-pages.yml
@@ -7,6 +7,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
+      - id: brew_cache
+        run: echo "::set-output name=dir::$(brew --cache)"
+      - uses: actions/cache@v2
+        with:
+          path: ${{ steps.brew_cache.outputs.dir }}
+          key: brew-${{ hashFiles('**/Brewfile.lock.json') }}
+          restore-keys: brew-
       - uses: actions/setup-node@v2
         with: { node-version: lts/*, cache: yarn }
       - name: Git config