diff --git a/Gemfile b/Gemfile
index 79d7b0a17..af2587313 100644
--- a/Gemfile
+++ b/Gemfile
@@ -140,8 +140,8 @@ gem 'sanitize'
 gem 'sass'
 gem 'sidekiq'
 
+# for sidekiq web
 gem 'sinatra', require: nil
-gem 'slim'  # required for sidekiq-web
 
 gem 'therubyracer'
 gem 'thin', require: false
diff --git a/Gemfile.lock b/Gemfile.lock
index a4e99029a..39c585e59 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -341,9 +341,6 @@ GEM
       rack (~> 1.4)
       rack-protection (~> 1.4)
       tilt (~> 1.3, >= 1.3.4)
-    slim (2.0.2)
-      temple (~> 0.6.6)
-      tilt (>= 1.3.3, < 2.1)
     slop (3.4.7)
     sorcerer (1.0.2)
     spork (1.0.0rc4)
@@ -360,7 +357,6 @@ GEM
       activesupport (>= 3.0)
       sprockets (~> 2.8)
     stackprof (0.2.5)
-    temple (0.6.7)
     therubyracer (0.12.1)
       libv8 (~> 3.16.14.0)
       ref
@@ -476,7 +472,6 @@ DEPENDENCIES
   simple-rss
   simplecov
   sinatra
-  slim
   spork-rails
   stackprof
   therubyracer