diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 09939eef..45ef5d84 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -1,7 +1,6 @@
 name: test
 
 on:
-  push:
   pull_request:
 
 jobs:
@@ -10,7 +9,7 @@ jobs:
     strategy:
       fail-fast: false # run all tests so we see which gem/ruby combinations break
       matrix:
-        ruby: ['3.0', '3.1', '3.2', head, jruby-head]
+        ruby: ['3.0', '3.1', '3.2', '3.3', head, jruby-head]
         os: [ubuntu-latest, windows-latest]
         task: [spec]
         include:
diff --git a/Gemfile b/Gemfile
index 88af8f0e..a65174b4 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,6 +8,7 @@ gem 'minitest', '~> 5.5.0'
 gem 'rspec', '~> 3.3'
 gem 'cucumber', "~> 4.0"
 gem 'cuke_modeler', '~> 3.6'
-gem 'spinach', '~> 0.12'
+gem 'spinach'
+gem 'racc' # need for spinach on 3.3+ https://github.com/codegram/spinach/issues/256
 gem 'rake'
 gem 'rubocop', '~> 1.51.0' # lock minor so we do not get accidental violations
diff --git a/Gemfile.lock b/Gemfile.lock
index 4629be16..05af70db 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -16,7 +16,7 @@ GEM
     ast (2.4.2)
     builder (3.2.4)
     bump (0.10.0)
-    colorize (0.8.1)
+    colorize (1.1.0)
     concurrent-ruby (1.1.10)
     cucumber (4.1.0)
       builder (~> 3.2, >= 3.2.3)
@@ -72,6 +72,8 @@ GEM
       middleware
       thor
       thread_safe
+    racc (1.8.0)
+    racc (1.8.0-java)
     rainbow (3.1.1)
     rake (13.0.6)
     regexp_parser (2.8.0)
@@ -129,10 +131,11 @@ DEPENDENCIES
   cuke_modeler (~> 3.6)
   minitest (~> 5.5.0)
   parallel_tests!
+  racc
   rake
   rspec (~> 3.3)
   rubocop (~> 1.51.0)
-  spinach (~> 0.12)
+  spinach
   test-unit
 
 BUNDLED WITH
diff --git a/spec/integration_spec.rb b/spec/integration_spec.rb
index 294d21eb..468d0aaf 100644
--- a/spec/integration_spec.rb
+++ b/spec/integration_spec.rb
@@ -571,12 +571,13 @@ def test_unicode
       write "features/fail2.feature", "Feature: xxx\n  Scenario: xxx\n    Given I fail"
       results = run_tests ["features"], processes: 3, type: "cucumber", fail: true
 
-      failing_scenarios = if Gem.win_platform?
+      failing_scenarios = if Gem.win_platform? && RUBY_VERSION < "3.3.0"
         ["cucumber features/fail1.feature:2 # Scenario: xxx", "cucumber features/fail2.feature:2 # Scenario: xxx"]
       else
         ["cucumber features/fail2.feature:2 # Scenario: xxx", "cucumber features/fail1.feature:2 # Scenario: xxx"]
       end
 
+      results.gsub!(/.*WARNING.*\n/, "")
       expect(results).to include <<-EOF.gsub('        ', '')
         Failing Scenarios:
         #{failing_scenarios[0]}
diff --git a/spec/parallel_tests/cucumber/runner_spec.rb b/spec/parallel_tests/cucumber/runner_spec.rb
index eb52cf85..31cfe8fc 100644
--- a/spec/parallel_tests/cucumber/runner_spec.rb
+++ b/spec/parallel_tests/cucumber/runner_spec.rb
@@ -21,7 +21,18 @@ def call(*args)
           "Failing Scenarios:", "cucumber features/failure:3", "cucumber features/failure:4",
           "Failing Scenarios:", "cucumber features/failure:5", "cucumber features/failure:6"
         ]
-        expect(call(results)).to eq("Failing Scenarios:\ncucumber features/failure:1\ncucumber features/failure:2\ncucumber features/failure:3\ncucumber features/failure:4\ncucumber features/failure:5\ncucumber features/failure:6\n\n")
+        output = call(results)
+        output.gsub!(/.*WARNING.*\n/, "")
+        expect(output).to eq(<<~TXT)
+          Failing Scenarios:
+          cucumber features/failure:1
+          cucumber features/failure:2
+          cucumber features/failure:3
+          cucumber features/failure:4
+          cucumber features/failure:5
+          cucumber features/failure:6
+
+        TXT
       end
 
       it "collates flaky scenarios separately" do
diff --git a/spec/parallel_tests/test/runner_spec.rb b/spec/parallel_tests/test/runner_spec.rb
index f3f2c37b..833ea4cf 100644
--- a/spec/parallel_tests/test/runner_spec.rb
+++ b/spec/parallel_tests/test/runner_spec.rb
@@ -43,7 +43,7 @@ def call(*args)
     end
 
     it "uses given when passed found" do
-      result = Gem.win_platform? ? [["a", "b"], ["c"]] : [["a", "c"], ["b"]]
+      result = (Gem.win_platform? && RUBY_VERSION < "3.3.0" ? [["a", "b"], ["c"]] : [["a", "c"], ["b"]])
       expect(call(["a", "b", "c"], 2, group_by: :found)).to eq(result)
     end