diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 85fe4fe..2d643f5 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -13,7 +13,8 @@ jobs:
 
     strategy:
       matrix:
-        ruby-version: ['3.2', '3.1', '3.0']
+        ruby-version: ['3.3', '3.2', '3.1']
+        node-version: ['16', '18', '20', '22']
 
     steps:
       - uses: actions/checkout@v3
@@ -21,7 +22,11 @@ jobs:
         uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ matrix.ruby-version }}
+      - name: Set up Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node-version }}
       - name: Install dependencies
         run: bundle install
       - name: Run tests
-        run: bundle exec rake
\ No newline at end of file
+        run: bundle exec rake
diff --git a/lib/execjs/pcruntime/context_process_runtime.rb b/lib/execjs/pcruntime/context_process_runtime.rb
index d9a1ce0..e968692 100644
--- a/lib/execjs/pcruntime/context_process_runtime.rb
+++ b/lib/execjs/pcruntime/context_process_runtime.rb
@@ -197,6 +197,7 @@ def post_request(socket_path, path, content_type = nil, body = nil)
           socket.write_timeout *= 100
 
           request = Net::HTTP::Post.new(path)
+          request['Host'] = 'localhost'
           request['Connection'] = 'close'
           unless content_type.nil?
             request['Content-Type'] = content_type