diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 7f3b9b8..867940a 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -14,10 +14,10 @@ jobs:
           truffleruby,
           truffleruby-head
         ]
-        gemfile: [ rack3 ]
+#        gemfile: [ rack3 ]
     runs-on: ${{ matrix.os }}
-    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
+#    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
     steps:
       - uses: actions/checkout@v4
       - uses: ruby/setup-ruby@v1
diff --git a/gemfiles/rack3.gemfile b/gemfiles/rack3.gemfile
index 0e6948c..b447cc2 100644
--- a/gemfiles/rack3.gemfile
+++ b/gemfiles/rack3.gemfile
@@ -1,5 +1,5 @@
-source 'https://rubygems.org'
-
-gemspec path: '..'
-
-gem 'rack', '~> 3'
+# source 'https://rubygems.org'
+#
+# gemspec path: '..'
+#
+# gem 'rack', '~> 3'