diff --git a/Gemfile b/Gemfile
index f04792bb4b..868bb9a920 100644
--- a/Gemfile
+++ b/Gemfile
@@ -11,3 +11,5 @@ gem 'webrick', '~> 1.8'
 gem 'csv'
 gem 'base64'
 gem 'bigdecimal'
+
+gem "logger", "~> 1.7"
diff --git a/Gemfile.lock b/Gemfile.lock
index c32629e09f..5064ce2bdd 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -90,6 +90,7 @@ GEM
     listen (3.9.0)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
+    logger (1.7.0)
     mercenary (0.4.0)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
@@ -169,6 +170,7 @@ DEPENDENCIES
   jekyll-paginate-v2
   jekyll-redirect-from
   jekyll-watch
+  logger (~> 1.7)
   webrick (~> 1.8)
 
 BUNDLED WITH