diff --git a/Gemfile b/Gemfile
index b0fa7fc..f3c7881 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,7 +3,7 @@ source "http://rubygems.org/"
 gem 'sinatra'
 gem 'sinatra-contrib'
 gem 'rake'
-gem 'sidekiq', '~> 5.2.7'
+gem 'sidekiq', '~> 6.4.0'
 gem 'rufus-scheduler', '~> 3.4'
 gem 'sidekiq-cron'
 gem 'bcrypt'
diff --git a/Gemfile.lock b/Gemfile.lock
index a69c1f3..75dadb3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -40,7 +40,7 @@ GEM
       capistrano-bundler (~> 1.1)
     coderay (1.1.2)
     concurrent-ruby (1.1.5)
-    connection_pool (2.2.2)
+    connection_pool (2.2.5)
     crass (1.0.4)
     debug_inspector (0.0.3)
     domain_name (0.5.20190701)
@@ -117,14 +117,14 @@ GEM
     puma (4.1.0)
       nio4r (~> 2.0)
     raabro (1.1.6)
-    rack (2.0.7)
+    rack (2.2.3)
     rack-protection (2.0.7)
       rack
     rake (12.3.3)
     rb-fsevent (0.10.3)
     rb-inotify (0.10.0)
       ffi (~> 1.0)
-    redis (4.1.2)
+    redis (4.5.1)
     rest-client (2.1.0)
       http-accept (>= 1.7.0, < 2.0)
       http-cookie (>= 1.0.2, < 2.0)
@@ -138,11 +138,10 @@ GEM
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
     sax-machine (1.3.2)
-    sidekiq (5.2.7)
-      connection_pool (~> 2.2, >= 2.2.2)
-      rack (>= 1.5.0)
-      rack-protection (>= 1.5.0)
-      redis (>= 3.3.5, < 5)
+    sidekiq (6.4.0)
+      connection_pool (>= 2.2.2)
+      rack (~> 2.0)
+      redis (>= 4.2.0)
     sidekiq-cron (1.1.0)
       fugit (~> 1.1)
       sidekiq (>= 4.2.1)
@@ -204,7 +203,7 @@ DEPENDENCIES
   rest-client
   rufus-scheduler (~> 3.4)
   sass
-  sidekiq (~> 5.2.7)
+  sidekiq (~> 6.4.0)
   sidekiq-cron
   sinatra
   sinatra-activerecord