diff --git a/Gemfile b/Gemfile
index 32101db5da7..8cb3ff20b51 100644
--- a/Gemfile
+++ b/Gemfile
@@ -99,7 +99,6 @@ gem 'rest-client'
 gem 'rinku'
 gem 'sanitize'
 gem 'sidekiq'
-gem 'sidekiq-statistic'
 
 # for sidekiq web
 gem 'sinatra', require: false
diff --git a/Gemfile.lock b/Gemfile.lock
index 217b2948933..a4e0de22bc4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -346,8 +346,6 @@ GEM
       connection_pool (~> 2.2, >= 2.2.0)
       rack-protection (>= 1.5.0)
       redis (~> 3.2, >= 3.2.1)
-    sidekiq-statistic (1.2.0)
-      sidekiq (>= 3.3.4, < 5)
     simple-rss (1.3.1)
     sinatra (1.4.6)
       rack (~> 1.4)
@@ -477,7 +475,6 @@ DEPENDENCIES
   seed-fu (~> 2.3.5)
   shoulda
   sidekiq
-  sidekiq-statistic
   simple-rss
   sinatra
   spork-rails
diff --git a/app/jobs/onceoff/clean_up_sidekiq_statistic.rb b/app/jobs/onceoff/clean_up_sidekiq_statistic.rb
new file mode 100644
index 00000000000..624e01af5d6
--- /dev/null
+++ b/app/jobs/onceoff/clean_up_sidekiq_statistic.rb
@@ -0,0 +1,7 @@
+module Jobs
+  class GrantEmoji < Jobs::Onceoff
+    def execute_onceoff(args)
+      $redis.without_namespace.del('sidekiq:sidekiq:statistic')
+    end
+  end
+end