diff --git a/Gemfile b/Gemfile
index 376e928..9cfe409 100644
--- a/Gemfile
+++ b/Gemfile
@@ -67,6 +67,6 @@ gem "name_of_person", "~> 1.1"
 gem "omniauth-facebook", "~> 5.0"
 gem "omniauth-github", "~> 1.3"
 gem "omniauth-twitter", "~> 1.4"
-gem "sidekiq", "~> 6.0", ">= 6.0.3"
+gem "sidekiq", "~> 6.4"
 gem "sitemap_generator", "~> 6.0", ">= 6.0.1"
 gem "whenever", require: false
diff --git a/Gemfile.lock b/Gemfile.lock
index fb42b7d..27ce4da 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -113,7 +113,7 @@ GEM
     childprocess (3.0.0)
     chronic (0.10.2)
     concurrent-ruby (1.1.5)
-    connection_pool (2.2.2)
+    connection_pool (2.2.5)
     crass (1.0.5)
     datetime_picker_rails (0.0.7)
       momentjs-rails (>= 2.8.1)
@@ -221,9 +221,7 @@ GEM
     public_suffix (4.0.1)
     puma (4.3.0)
       nio4r (~> 2.0)
-    rack (2.0.7)
-    rack-protection (2.0.7)
-      rack
+    rack (2.2.3)
     rack-proxy (0.6.5)
       rack
     rack-test (1.1.0)
@@ -259,7 +257,7 @@ GEM
     rb-fsevent (0.10.3)
     rb-inotify (0.10.0)
       ffi (~> 1.0)
-    redis (4.1.3)
+    redis (4.5.1)
     regexp_parser (1.6.0)
     responders (3.0.0)
       actionpack (>= 5.0)
@@ -290,11 +288,10 @@ GEM
     selenium-webdriver (3.142.6)
       childprocess (>= 0.5, < 4.0)
       rubyzip (>= 1.2.2)
-    sidekiq (6.0.3)
+    sidekiq (6.4.0)
       connection_pool (>= 2.2.2)
-      rack (>= 2.0.0)
-      rack-protection (>= 2.0.0)
-      redis (>= 4.1.0)
+      rack (~> 2.0)
+      redis (>= 4.2.0)
     sitemap_generator (6.0.2)
       builder (~> 3.0)
     sprockets (4.0.0)
@@ -368,7 +365,7 @@ DEPENDENCIES
   rails (~> 6.0.1)
   sass-rails (>= 6)
   selenium-webdriver
-  sidekiq (~> 6.0, >= 6.0.3)
+  sidekiq (~> 6.4)
   sitemap_generator (~> 6.0, >= 6.0.1)
   standard (~> 0.1.6)
   turbolinks (~> 5)