diff --git a/.github/workflows/test-and-deploy.yml b/.github/workflows/test-and-deploy.yml
index 05c62cb..c659455 100644
--- a/.github/workflows/test-and-deploy.yml
+++ b/.github/workflows/test-and-deploy.yml
@@ -17,10 +17,10 @@ jobs:
     timeout-minutes: 20
     strategy:
       matrix:
-        ruby: [ '2.4', '2.5', '2.6', '2.7', '3.0', '3.1' ]
+        ruby: [ '2.4', '2.5', '2.6', '2.7', '3.0', '3.1', '3.2', '3.3', '3.4', 'jruby-9.4', 'jruby-10.0' ]
     steps:
       - name: Checkout ruby-http-client
-        uses: actions/checkout@v2
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
@@ -33,7 +33,9 @@ jobs:
       - run: make install
 
       - name: Set up linter
-        run: bundle add rubocop --version "~> 1.24.1" --group "development" --skip-install
+        run: |
+          bundle add rubocop --version "~> 1.24.1" --group "development" --skip-install
+          bundle add base64 --group "development" --skip-install
         if: ${{ matrix.ruby != '2.4' }}
 
       - run: bundle install --with development
@@ -52,7 +54,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout ruby-http-client
-        uses: actions/checkout@v2
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0