diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index 3907e49..cd6e4b8 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -18,7 +18,7 @@ jobs:
       uses: ruby/setup-ruby@v1
       with:
         ruby-version: ${{ matrix.ruby }}
-    - uses: actions/cache@v3
+    - uses: actions/cache@v4
       with:
         path: vendor/bundle
         key: ${{ runner.os }}-gems-202103-${{ hashFiles('**/Gemfile.lock') }}