diff --git a/Gemfile b/Gemfile
index 71187876..269f0088 100644
--- a/Gemfile
+++ b/Gemfile
@@ -82,10 +82,6 @@ group :development do
   gem 'web-console', '< 4.0.0'
 end
 
-group :production do
-  gem 'unicorn', group: :production
-end
-
 gem 'puma'
 
 group :development, :test do
diff --git a/Gemfile.lock b/Gemfile.lock
index 2f64072f..b8c90968 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -251,7 +251,6 @@ GEM
       activerecord
       kaminari-core (= 1.2.0)
     kaminari-core (1.2.0)
-    kgio (2.11.3)
     launchy (2.5.0)
       addressable (~> 2.7)
     letter_opener (1.7.0)
@@ -389,7 +388,6 @@ GEM
       rake (>= 0.8.7)
       thor (>= 0.19.0, < 2.0)
     rainbow (3.0.0)
-    raindrops (0.19.1)
     rake (13.0.1)
     rb-fsevent (0.10.3)
     rb-inotify (0.10.1)
@@ -515,9 +513,6 @@ GEM
       unf_ext
     unf_ext (0.0.7.7)
     unicode-display_width (1.7.0)
-    unicorn (5.5.4)
-      kgio (~> 2.6)
-      raindrops (~> 0.7)
     warden (1.2.8)
       rack (>= 2.0.6)
     web-console (3.7.0)
@@ -610,7 +605,6 @@ DEPENDENCIES
   turbolinks (~> 2.5.3)
   twitter
   uglifier (>= 1.3.0)
-  unicorn
   web-console (< 4.0.0)
 
 BUNDLED WITH