diff --git a/.github/workflows/e2e-dummy-gem.yml b/.github/workflows/e2e-dummy-gem.yml
index d0e21ed..936f230 100644
--- a/.github/workflows/e2e-dummy-gem.yml
+++ b/.github/workflows/e2e-dummy-gem.yml
@@ -29,7 +29,7 @@ jobs:
     strategy:
       matrix:
         os: ["macos-latest", "ubuntu-22.04", "windows-latest"]
-        rubies: ["3.4.7", "3.1.7"]
+        rubies: ["3.1", "3.4"]
         type: ["cross", "native"]
     runs-on: "${{ matrix.os }}"
     steps:
diff --git a/lib/easy_compile/cli.rb b/lib/easy_compile/cli.rb
index d68324b..72c670a 100644
--- a/lib/easy_compile/cli.rb
+++ b/lib/easy_compile/cli.rb
@@ -98,7 +98,7 @@ def ci_template
       ruby_requirements = compilation_task.gemspec.required_ruby_version
       latest_supported_ruby_version = RubySeries.latest_version_for_requirements(ruby_requirements)
       runtime_version_for_compilation = RubySeries.runtime_version_for_compilation(ruby_requirements)
-      ruby_versions_for_testing = RubySeries.versions_to_test_agaist(ruby_requirements).map(&:to_s)
+      ruby_versions_for_testing = RubySeries.versions_to_test_against(ruby_requirements)
 
       directory(".github", context: instance_eval("binding"))
     end
diff --git a/lib/easy_compile/ruby_series.rb b/lib/easy_compile/ruby_series.rb
index 23c4911..99671ce 100644
--- a/lib/easy_compile/ruby_series.rb
+++ b/lib/easy_compile/ruby_series.rb
@@ -25,9 +25,13 @@ def versions_to_compile_against(requirements)
       end
     end
 
-    def versions_to_test_agaist(requirements)
-      latest_rubies.select do |ruby_version|
+    def versions_to_test_against(requirements)
+      selected_rubies = latest_rubies.select do |ruby_version|
         requirements.satisfied_by?(ruby_version)
+      end.reverse
+
+      selected_rubies.map do |version|
+        version.segments.tap(&:pop).join('.')
       end
     end
 
diff --git a/test/fixtures/expected_github_workflow.yml b/test/fixtures/expected_github_workflow.yml
index 55ee4ba..866e182 100644
--- a/test/fixtures/expected_github_workflow.yml
+++ b/test/fixtures/expected_github_workflow.yml
@@ -34,7 +34,7 @@ jobs:
     strategy:
       matrix:
         os: ["macos-latest", "ubuntu-22.04"]
-        rubies: ["3.4.7", "3.3.9", "3.2.9", "3.1.7"]
+        rubies: ["3.1", "3.2", "3.3", "3.4"]
         type: ["cross", "native"]
     runs-on: "${{ matrix.os }}"
     steps:
diff --git a/test/fixtures/expected_github_workflow_test_and_workdir.yml b/test/fixtures/expected_github_workflow_test_and_workdir.yml
index c82656b..2336b8b 100644
--- a/test/fixtures/expected_github_workflow_test_and_workdir.yml
+++ b/test/fixtures/expected_github_workflow_test_and_workdir.yml
@@ -36,7 +36,7 @@ jobs:
     strategy:
       matrix:
         os: ["macos-latest", "ubuntu-22.04"]
-        rubies: ["3.4.7", "3.3.9", "3.2.9", "3.1.7"]
+        rubies: ["3.1", "3.2", "3.3", "3.4"]
         type: ["cross", "native"]
     runs-on: "${{ matrix.os }}"
     steps:
diff --git a/test/fixtures/expected_github_workflow_test_command.yml b/test/fixtures/expected_github_workflow_test_command.yml
index 94dbd7a..26c67a6 100644
--- a/test/fixtures/expected_github_workflow_test_command.yml
+++ b/test/fixtures/expected_github_workflow_test_command.yml
@@ -34,7 +34,7 @@ jobs:
     strategy:
       matrix:
         os: ["macos-latest", "ubuntu-22.04"]
-        rubies: ["3.4.7", "3.3.9", "3.2.9", "3.1.7"]
+        rubies: ["3.1", "3.2", "3.3", "3.4"]
         type: ["cross", "native"]
     runs-on: "${{ matrix.os }}"
     steps:
diff --git a/test/fixtures/expected_github_workflow_working_dir.yml b/test/fixtures/expected_github_workflow_working_dir.yml
index 6723794..01f6878 100644
--- a/test/fixtures/expected_github_workflow_working_dir.yml
+++ b/test/fixtures/expected_github_workflow_working_dir.yml
@@ -36,7 +36,7 @@ jobs:
     strategy:
       matrix:
         os: ["macos-latest", "ubuntu-22.04"]
-        rubies: ["3.4.7", "3.3.9", "3.2.9", "3.1.7"]
+        rubies: ["3.1", "3.2", "3.3", "3.4"]
         type: ["cross", "native"]
     runs-on: "${{ matrix.os }}"
     steps:
diff --git a/test/ruby_series_test.rb b/test/ruby_series_test.rb
index 00ae5b7..139a9e4 100644
--- a/test/ruby_series_test.rb
+++ b/test/ruby_series_test.rb
@@ -50,14 +50,14 @@ def test_versions_to_compile_against_bis
     def test_versions_to_test_against
       requirements = Gem::Requirement.new("~> 3.4")
 
-      assert_equal(["3.4.7"], RubySeries.versions_to_test_agaist(requirements).map(&:to_s))
+      assert_equal(["3.4"], RubySeries.versions_to_test_against(requirements).map(&:to_s))
     end
 
     def test_versions_to_test_against_bis
       requirements = Gem::Requirement.new(">= 3.1")
-      expected = ["3.4.7", "3.3.9", "3.2.9", "3.1.7"]
+      expected = ["3.1", "3.2", "3.3", "3.4"]
 
-      assert_equal(expected, RubySeries.versions_to_test_agaist(requirements).map(&:to_s))
+      assert_equal(expected, RubySeries.versions_to_test_against(requirements).map(&:to_s))
     end
   end
 end