diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d6a4f815..e6204485 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -74,6 +74,8 @@ jobs:
       - uses: actions/checkout@v2
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
+        with:
+          bundler-cache: true
       - name: Run static type checks
         run: bin/srb tc
   buildall: