diff --git a/Gemfile b/Gemfile
index 9505d5a..39f1d4a 100644
--- a/Gemfile
+++ b/Gemfile
@@ -62,7 +62,7 @@ group :development do
 end
 
 group :production do
-  gem 'pg', '~> 1.5'
+  gem "pg", "~> 1.5"
 end
 
 group :test do