diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index ea44b40b..6b6740b6 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -14,7 +14,7 @@ jobs:
     - uses: actions/checkout@v2
     - uses: ruby/setup-ruby@v1
       with:
-        ruby-version: 2.5
+        ruby-version: 2.7
         bundler-cache: true
     - uses: r7kamura/rubocop-problem-matchers-action@v1 # this shows the failures in the PR
     - run: bundle exec cookstyle
diff --git a/.github/workflows/unit.yml b/.github/workflows/unit.yml
index 698cbe9b..ba865f76 100644
--- a/.github/workflows/unit.yml
+++ b/.github/workflows/unit.yml
@@ -13,10 +13,10 @@ jobs:
       fail-fast: false
       matrix:
         os: [windows-2019, ubuntu-latest]
-        ruby: ['2.5', '2.6', '2.7', '3.0', '3.1']
+        ruby: ['2.7', '3.0', '3.1']
     runs-on: ${{ matrix.os }}
     env:
-      BUNDLE_WITHOUT: profiling,debug,docs
+      BUNDLE_WITHOUT: profiling debug docs
     name: Unit test on ${{ matrix.os }} with Ruby ${{ matrix.ruby }}
     steps:
       - uses: actions/checkout@v2
diff --git a/cookstyle.gemspec b/cookstyle.gemspec
index 50b78217..c53a1f9d 100644
--- a/cookstyle.gemspec
+++ b/cookstyle.gemspec
@@ -11,7 +11,7 @@ Gem::Specification.new do |spec|
   spec.summary       = 'Cookstyle is a code linting tool that helps you to write better Chef Infra cookbooks by detecting and automatically correcting style, syntax, and logic mistakes in your code.'
   spec.license       = 'Apache-2.0'
   spec.homepage      = 'https://docs.chef.io/workstation/cookstyle/'
-  spec.required_ruby_version = '>= 2.5'
+  spec.required_ruby_version = '>= 2.7'
 
   # the gemspec and Gemfile are necessary for appbundling of the gem
   spec.files = %w(LICENSE cookstyle.gemspec Gemfile) + Dir.glob('{lib,bin,config}/**/*')
diff --git a/lib/rubocop/cop/chef/modernize/cron_d_file_or_template.rb b/lib/rubocop/cop/chef/modernize/cron_d_file_or_template.rb
index 4d396ed7..e2c82ff4 100644
--- a/lib/rubocop/cop/chef/modernize/cron_d_file_or_template.rb
+++ b/lib/rubocop/cop/chef/modernize/cron_d_file_or_template.rb
@@ -101,7 +101,7 @@ class CronDFileOrTemplate < Base
 
           def on_block(node)
             file_or_template?(node) do |file_name|
-              break unless file_name.start_with?('/etc/cron.d')
+              break unless file_name.start_with?(%r{/etc/cron\.d\b}i)
               add_offense(node, severity: :refactor)
             end
 
@@ -110,7 +110,7 @@ def on_block(node)
               # and check if their value contains '/etc/cron.d'
               # covers the case where the argument to the path property is provided via a method like File.join
               code_property.each_descendant do |d|
-                add_offense(node, severity: :refactor) if d.respond_to?(:value) && d.value.match?(%r{/etc/cron\.d}i)
+                add_offense(node, severity: :refactor) if d.respond_to?(:value) && d.value.match?(%r{/etc/cron\.d\b}i)
               end
             end
           end