diff --git a/Gemfile b/Gemfile
index 72ef5751f..c848fb723 100644
--- a/Gemfile
+++ b/Gemfile
@@ -44,7 +44,7 @@ end
 
 group :heroku do
   gem 'pg'
-  gem 'unicorn', '~> 4.2.0', :require => false
+  gem 'unicorn', '~> 4.3.0', :require => false
 end
 
 gem 'settingslogic', :git => 'git://github.com/binarylogic/settingslogic.git'
diff --git a/Gemfile.lock b/Gemfile.lock
index 0ca09738f..575d46d39 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -475,7 +475,7 @@ GEM
     uglifier (1.2.4)
       execjs (>= 0.3.0)
       multi_json (>= 1.0.2)
-    unicorn (4.2.1)
+    unicorn (4.3.1)
       kgio (~> 2.6)
       rack
       raindrops (~> 0.7)
@@ -591,7 +591,7 @@ DEPENDENCIES
   twitter (= 2.0.2)
   typhoeus
   uglifier
-  unicorn (~> 4.2.0)
+  unicorn (~> 4.3.0)
   webmock
   whenever
   will_paginate