diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 3fcde8011723e..4831c60fc210d 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -313,8 +313,8 @@ jobs:
         uses: actions/cache@v3
         with:
           path: ${{ steps.set-up-homebrew.outputs.gems-path }}
-          key: ${{ runner.os }}-rubygems${{ matrix.ruby }}-${{ steps.set-up-homebrew.outputs.gems-hash }}
-          restore-keys: ${{ runner.os }}-rubygems${{ matrix.ruby }}-
+          key: ${{ matrix.runs-on }}-tests-rubygems${{ matrix.ruby }}-${{ steps.set-up-homebrew.outputs.gems-hash }}
+          restore-keys: ${{ matrix.runs-on }}-tests-rubygems${{ matrix.ruby }}-
 
       - name: Setup Ruby
         if: matrix.ruby