diff --git a/.github/workflows/jruby.yml b/.github/workflows/jruby.yml
deleted file mode 100644
index 121919d..0000000
--- a/.github/workflows/jruby.yml
+++ /dev/null
@@ -1,30 +0,0 @@
-name: build
-
-on:
-  push:
-  pull_request:
-  schedule:
-    - cron: '12 3 * * *'
-
-jobs:
-  build:
-    name: build (${{ matrix.ruby }} / ${{ matrix.os }})
-    strategy:
-      matrix:
-        ruby: [ 'jruby-9.3' ]
-        os: [ ubuntu-latest ]
-    runs-on: ${{ matrix.os }}
-    steps:
-    - uses: actions/checkout@v3
-    - name: Set up Ruby
-      uses: ruby/setup-ruby@v1
-      with:
-        ruby-version: ${{ matrix.ruby }}
-        bundler-cache: true # 'bundle install' and enable caching
-    - name: Build
-      run: bundle exec rake build
-    - name: Run test
-      run: bundle exec rake test
-# Temporarily skipped until a released version of JRuby support 2.7+
-#    - name: Installation test
-#      run: gem install pkg/*.gem
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 9ca9a0b..49a9a3b 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -14,10 +14,11 @@ jobs:
         ruby: [ head, '3.0', '2.7' ]
         os: [ ubuntu-latest, macos-latest, windows-latest ]
         exclude:
-        - { os: windows-latest , ruby: head }
+        - { os: windows-latest, ruby: head }
         include:
-        - { os: windows-latest , ruby: mingw }
-        - { os: windows-latest , ruby: mswin }
+        - { os: windows-latest, ruby: mingw }
+        - { os: windows-latest, ruby: mswin }
+        - { os: ubuntu-latest, ruby: 'jruby-9.3', bundle: 'bundle exec' }
     runs-on: ${{ matrix.os }}
     steps:
     - uses: actions/checkout@v3
@@ -25,11 +26,11 @@ jobs:
       uses: ruby/setup-ruby@v1
       with:
         ruby-version: ${{ matrix.ruby }}
-    - name: Install dependencies
-      run: bundle install
+        bundler-cache: true # 'bundle install' and enable caching
     - name: Build
-      run: rake build
+      run: ${{matrix.bundle}} rake build
     - name: Run test
-      run: rake test
+      run: ${{matrix.bundle}} rake test
     - name: Installation test
       run: gem install pkg/*.gem
+      if: ${{ !startsWith(matrix.ruby, 'jruby') }}