diff --git a/Gemfile b/Gemfile
index 6b1db4c5..1f49e56a 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,7 +3,8 @@ gemspec :name => "jekyll"
 
 gem "rake", "~> 11.0"
 
-gem "activesupport", "~> 4.2", :groups => [:test_legacy, :site] if RUBY_ENGINE == 'ruby' && RUBY_VERSION < '2.2.2'
+# Dependency of jekyll-mentions. RubyGems in Ruby 2.1 doesn't shield us from this.
+gem "activesupport", "~> 4.2", :groups => [:test_legacy, :site] if RUBY_VERSION < '2.2.2'
 
 group :development do
   gem "launchy", "~> 2.3"
diff --git a/site/_docs/contributing.md b/site/_docs/contributing.md
index 3c28953f..4038df0d 100644
--- a/site/_docs/contributing.md
+++ b/site/_docs/contributing.md
@@ -73,7 +73,7 @@ One gotcha, all pull requests should be directed at the `master` branch (the def
 
 ### Adding plugins
 
-If you want to add your plugin to the [list of plugins](https://jekyllrb.com/docs/plugins/#available-plugins), please submit a pull request modifying the [plugins page source file](https://jekyllrb.com/docs/plugins/) by adding a link to your plugin under the proper subheading depending upon its type.
+If you want to add your plugin to the [list of plugins](https://jekyllrb.com/docs/plugins/#available-plugins), please submit a pull request modifying the [plugins page source file](site/_docs/plugins.md) by adding a link to your plugin under the proper subheading depending upon its type.
 
 ## Code Contributions