diff --git a/Gemfile b/Gemfile
index 67357df..d7735f6 100644
--- a/Gemfile
+++ b/Gemfile
@@ -14,7 +14,7 @@ gem 'loofah', '~> 2.3.1'
 gem 'pg'
 gem 'puma', '~> 5.3.1'
 gem 'rails', '~> 6.1.3'
-gem 'sidekiq', '~> 4.1.3'
+gem 'sidekiq', '~> 6.4.0'
 gem 'simple_command'
 gem 'twitter', '~> 7.0.0'
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 413c730..ede16e6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -90,8 +90,8 @@ GEM
     childprocess (3.0.0)
     chronic (0.10.2)
     coderay (1.1.3)
-    concurrent-ruby (1.1.8)
-    connection_pool (2.2.3)
+    concurrent-ruby (1.1.9)
+    connection_pool (2.2.5)
     crack (0.4.5)
       rexml
     crass (1.0.6)
@@ -182,8 +182,6 @@ GEM
       railties (>= 3.1)
     multi_json (1.15.0)
     multipart-post (2.1.1)
-    mustermann (1.1.1)
-      ruby2_keywords (~> 0.0.1)
     naught (1.1.0)
     net-http-persistent (4.0.1)
       connection_pool (~> 2.2)
@@ -219,8 +217,6 @@ GEM
     rack (2.2.3)
     rack-cors (1.1.1)
       rack (>= 2.0.0)
-    rack-protection (2.1.0)
-      rack
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails (6.1.3)
@@ -254,7 +250,7 @@ GEM
     rb-fsevent (0.10.4)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    redis (3.3.5)
+    redis (4.5.1)
     regexp_parser (2.1.1)
     responders (3.0.1)
       actionpack (>= 5.0)
@@ -298,7 +294,7 @@ GEM
       rack (>= 1.1)
       rubocop (>= 0.90.0, < 2.0)
     ruby-progressbar (1.11.0)
-    ruby2_keywords (0.0.4)
+    ruby2_keywords (0.0.5)
     rubyzip (2.3.0)
     sassc (2.4.0)
       ffi (~> 1.9)
@@ -315,18 +311,12 @@ GEM
     selenium-webdriver (3.142.7)
       childprocess (>= 0.5, < 4.0)
       rubyzip (>= 1.2.2)
-    sidekiq (4.1.4)
-      concurrent-ruby (~> 1.0)
-      connection_pool (~> 2.2, >= 2.2.0)
-      redis (~> 3.2, >= 3.2.1)
-      sinatra (>= 1.4.7)
+    sidekiq (6.4.0)
+      connection_pool (>= 2.2.2)
+      rack (~> 2.0)
+      redis (>= 4.2.0)
     simple_command (0.1.0)
     simple_oauth (0.3.1)
-    sinatra (2.1.0)
-      mustermann (~> 1.0)
-      rack (~> 2.2)
-      rack-protection (= 2.1.0)
-      tilt (~> 2.0)
     spring (2.1.1)
     spring-watcher-listen (2.0.1)
       listen (>= 2.7, < 4.0)
@@ -405,7 +395,7 @@ DEPENDENCIES
   rubocop (~> 0.90)
   rubocop-performance
   rubocop-rails
-  sidekiq (~> 4.1.3)
+  sidekiq (~> 6.4.0)
   simple_command
   spring
   spring-watcher-listen (~> 2.0.0)