diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index 1e8356d9..712adf9c 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -79,8 +79,6 @@ jobs:
     env:
       # $BUNDLE_GEMFILE must be set at the job level, so it is set for all steps
       BUNDLE_GEMFILE: ${{ github.workspace }}/gemfiles/${{ matrix.gemfile }}.gemfile
-      LOCKFILE: '${{ github.workspace }}/gemfiles/${{ matrix.gemfile }}.gemfile.lock'
-      LOCKFILE_HASH: hashFiles('${{ github.workspace }}/gemfiles/${{ matrix.gemfile }}.gemfile.lock')
       # Workaround b/c upgrading Minitest broke some mocking expectations
       # having to do with automatic kwarg splatting
       MT_KWARGS_HACK: 1
@@ -107,20 +105,12 @@ jobs:
       with:
         bundler: 2.4.9
         ruby-version: ${{ matrix.ruby }}
-    - run: echo hash=${LOCKFILE_HASH} >> $GITHUB_ENV
-    - run: echo lockfilepath=${LOCKFILE} >> $GITHUB_ENV
     - run: ./test/bin/create-fake-js-package-managers ${{ matrix.js_package_manager.installer }}
-    - run: echo ${{ hashFiles('${{ github.workspace }}/gemfiles/${{ matrix.gemfile }}.gemfile.lock') }}
-    - run: echo ${{ hashFiles('/home/runner/work/react-rails/react-rails/gemfiles/base.gemfile.lock') }}
-    - run: echo ${{ hashFiles(${{ LOCKFILE }})  }}
-    - run: echo ${{ hashFiles(${{ env.lockfilepath }})  }}
-    - run: echo '${{ github.workspace }}/gemfiles/${{ matrix.gemfile }}.gemfile.lock'
-    - run: ls -l '${{ github.workspace }}/gemfiles/'
     - name: Save dummy app ruby gems to cache
       uses: actions/cache@v3
       with:
         path: test/dummy/vendor/bundle
-        key: dummy-app-gem-cache-${{ env.hash }}
+        key: dummy-app-gem-cache-${{ hashFiles(format('{0}/gemfiles/{1}.gemfile.lock', github.workspace, matrix.gemfile)) }}
     - name: Install Ruby Gems for dummy app
       run: bundle lock --add-platform 'x86_64-linux' && bundle check --path=test/dummy/vendor/bundle || bundle _2.4.9_ install --frozen --path=test/dummy/vendor/bundle --jobs=4 --retry=3
     - run: cd test/dummy && yalc add react_ujs && ${{ matrix.js_package_manager.installer }} install