diff --git a/Gemfile b/Gemfile
index 9b430c081..251e142c5 100644
--- a/Gemfile
+++ b/Gemfile
@@ -13,7 +13,7 @@ gem "responders", "2.1.0"
 
 # Appserver
 
-gem "unicorn", "4.8.3", require: false
+gem "unicorn", "4.9.0", require: false
 
 # API and JSON
 
diff --git a/Gemfile.lock b/Gemfile.lock
index d0191cb93..2ed776444 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -685,7 +685,7 @@ GEM
     unf (0.1.4)
       unf_ext
     unf_ext (0.0.7.1)
-    unicorn (4.8.3)
+    unicorn (4.9.0)
       kgio (~> 2.6)
       rack
       raindrops (~> 0.7)
@@ -827,7 +827,7 @@ DEPENDENCIES
   twitter-text (= 1.12.0)
   typhoeus (= 0.7.1)
   uglifier (= 2.7.1)
-  unicorn (= 4.8.3)
+  unicorn (= 4.9.0)
   uuid (= 2.3.7)
   webmock (= 1.20.4)
   will_paginate (= 3.0.7)