diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
index 5224928b..b8c6d9f9 100644
--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -7,8 +7,8 @@
 [List any existing issues this PR resolves]
 
 ### Check List
-- [ ] All tests pass. See https://github.com/chef-cookbooks/community_cookbook_documentation/blob/master/TESTING.MD
+
+- [ ] All tests pass. See <https://github.com/chef-cookbooks/community_cookbook_documentation/blob/master/TESTING.MD>
 - [ ] New functionality includes testing.
 - [ ] New functionality has been documented in the README if applicable
-- [ ] The CLA has been signed. See https://github.com/chef-cookbooks/community_cookbook_documentation/blob/master/CONTRIBUTING.MD
-
+- [ ] All commits have been signed for the Developer Certificate of Origin. See <https://github.com/chef-cookbooks/community_cookbook_documentation/blob/master/CONTRIBUTING.MD>
diff --git a/libraries/matchers.rb b/libraries/matchers.rb
index b57d2c68..7b1e94c2 100644
--- a/libraries/matchers.rb
+++ b/libraries/matchers.rb
@@ -4,6 +4,8 @@
   # apt_preference
   #################
 
+  ChefSpec.define_matcher :apt_preference
+
   def add_apt_preference(resource_name)
     ChefSpec::Matchers::ResourceMatcher.new(:apt_preference, :add, resource_name)
   end
@@ -16,6 +18,8 @@ def remove_apt_preference(resource_name)
   # apt_repository
   #################
 
+  ChefSpec.define_matcher :apt_repository
+
   def add_apt_repository(resource_name)
     ChefSpec::Matchers::ResourceMatcher.new(:apt_repository, :add, resource_name)
   end
@@ -28,6 +32,8 @@ def remove_apt_repository(resource_name)
   # apt_update
   #################
 
+  ChefSpec.define_matcher :apt_update
+
   def update_apt_update(resource_name)
     ChefSpec::Matchers::ResourceMatcher.new(:apt_update, :update, resource_name)
   end
diff --git a/metadata.rb b/metadata.rb
index c1fd33d6..1ec5b834 100644
--- a/metadata.rb
+++ b/metadata.rb
@@ -16,7 +16,6 @@
 
 source_url 'https://github.com/chef-cookbooks/apt'
 issues_url 'https://github.com/chef-cookbooks/apt/issues'
+chef_version '>= 12.1'
 
-chef_version '>= 12.1' if respond_to?(:chef_version)
-
-depends 'compat_resource', '>= 12.10'
+depends 'compat_resource', '>= 12.14.7'