diff --git a/Gemfile b/Gemfile
index a67e65cdf..8c47ee92c 100644
--- a/Gemfile
+++ b/Gemfile
@@ -50,7 +50,7 @@ gem 'sprockets', '~> 3.7.1'
 gem 'turbolinks', '~> 2.5.3'
 gem 'turnout', '~> 2.4.0'
 gem 'uglifier', '~> 3.2.0'
-gem 'unicorn', '~> 5.3.0'
+gem 'unicorn', '~> 5.4.0'
 gem 'whenever', '~> 0.9.7', require: false
 
 source 'https://rails-assets.org' do
diff --git a/Gemfile.lock b/Gemfile.lock
index a1687f58e..9d960b418 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -228,7 +228,7 @@ GEM
       activerecord
       kaminari-core (= 1.1.1)
     kaminari-core (1.1.1)
-    kgio (2.11.0)
+    kgio (2.11.1)
     knapsack_pro (0.53.0)
       rake
     kramdown (1.14.0)
@@ -354,7 +354,7 @@ GEM
       thor (>= 0.18.1, < 2.0)
     rainbow (2.2.2)
       rake
-    raindrops (0.18.0)
+    raindrops (0.19.0)
     rake (12.3.0)
     redcarpet (3.4.0)
     referer-parser (0.3.0)
@@ -465,7 +465,7 @@ GEM
     uglifier (3.2.0)
       execjs (>= 0.3.0, < 3)
     unicode-display_width (1.3.0)
-    unicorn (5.3.0)
+    unicorn (5.4.0)
       kgio (~> 2.6)
       raindrops (~> 0.7)
     uniform_notifier (1.10.0)
@@ -569,7 +569,7 @@ DEPENDENCIES
   turbolinks (~> 2.5.3)
   turnout (~> 2.4.0)
   uglifier (~> 3.2.0)
-  unicorn (~> 5.3.0)
+  unicorn (~> 5.4.0)
   web-console (~> 3.3.0)
   whenever (~> 0.9.7)