diff --git a/Gemfile b/Gemfile
index fe18e0ff..d3fd860e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -107,12 +107,14 @@ gem 'aws-sdk-s3'
 gem 'rake'
 gem 'rrrretry'
 
+# Parse Ruby documentation
+gem 'yard', '~> 0.9.28'
+
 group :development do
   gem 'foreman'
   gem 'listen'
   gem 'memory_profiler'
   gem 'web-console'
-  gem 'yard', '~> 0.9.28'
 end
 
 group :test do
diff --git a/app/models/repo.rb b/app/models/repo.rb
index 034359c0..2adcc9ba 100644
--- a/app/models/repo.rb
+++ b/app/models/repo.rb
@@ -223,18 +223,16 @@ def self.find_by_full_name(full_name)
     Repo.find_by!(full_name: full_name)
   end
 
-  private
-
   def update_repo_info!
     UpdateRepoInfoJob.perform_later(self)
   end
 
-  def downcase_name
+  private def downcase_name
     self.name.downcase!
     self.user_name.downcase!
   end
 
-  def set_full_name!
+  private def set_full_name!
     if self.full_name && user_name.blank?
       self.user_name, self.name = self.full_name.split("/")
     else
@@ -242,12 +240,12 @@ def set_full_name!
     end
   end
 
-  def strip_whitespaces
+  private def strip_whitespaces
     self.name.strip!
     self.user_name.strip!
   end
 
-  def github_url_exists
+  private def github_url_exists
     if issues_fetcher.error?
       errors.add(
         :expiration_date,