diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index c6a40d8..7f3b9b8 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -14,7 +14,7 @@ jobs:
           truffleruby,
           truffleruby-head
         ]
-        gemfile: [ rack2, 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
diff --git a/gemfiles/rack2.gemfile b/gemfiles/rack2.gemfile
deleted file mode 100644
index f4b5893..0000000
--- a/gemfiles/rack2.gemfile
+++ /dev/null
@@ -1,5 +0,0 @@
-source 'https://rubygems.org'
-
-gemspec path: '..'
-
-gem 'rack', '~> 2'