diff --git a/Gemfile b/Gemfile
index 8991d1d..173d870 100644
--- a/Gemfile
+++ b/Gemfile
@@ -21,7 +21,7 @@ gem 'turbolinks', '~> 5'
 # Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
 gem 'jbuilder', '~> 2.5'
 gem 'redis', '~> 4.0'
-gem 'sidekiq', '~> 5.1'
+gem 'sidekiq', '~> 5.2'
 # Use ActiveModel has_secure_password
 # gem 'bcrypt', '~> 3.1.7'
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 8cdad23..e34b3be 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -64,8 +64,8 @@ GEM
     chromedriver-helper (1.2.0)
       archive-zip (~> 0.10)
       nokogiri (~> 1.8)
-    concurrent-ruby (1.0.5)
-    connection_pool (2.2.2)
+    concurrent-ruby (1.1.9)
+    connection_pool (2.2.5)
     crass (1.0.4)
     erubi (1.7.1)
     erubis (2.7.0)
@@ -106,7 +106,9 @@ GEM
     marcel (0.3.2)
       mimemagic (~> 0.3.2)
     method_source (0.9.0)
-    mimemagic (0.3.2)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.0)
     mini_portile2 (2.3.0)
     mini_racer (0.1.15)
@@ -120,8 +122,8 @@ GEM
     pg (1.0.0)
     public_suffix (3.0.2)
     puma (3.11.4)
-    rack (2.0.5)
-    rack-protection (2.0.3)
+    rack (2.2.3)
+    rack-protection (2.1.0)
       rack
     rack-test (1.0.0)
       rack (>= 1.0, < 3)
@@ -173,11 +175,11 @@ GEM
       childprocess (~> 0.5)
       rubyzip (~> 1.2)
     sexp_processor (4.11.0)
-    sidekiq (5.1.3)
-      concurrent-ruby (~> 1.0)
-      connection_pool (~> 2.2, >= 2.2.0)
+    sidekiq (5.2.9)
+      connection_pool (~> 2.2, >= 2.2.2)
+      rack (~> 2.0)
       rack-protection (>= 1.5.0)
-      redis (>= 3.3.5, < 5)
+      redis (>= 3.3.5, < 4.2)
     spring (2.0.2)
       activesupport (>= 4.2)
     spring-watcher-listen (2.0.1)
@@ -230,7 +232,7 @@ DEPENDENCIES
   redis (~> 4.0)
   sass-rails (~> 5.0)
   selenium-webdriver
-  sidekiq (~> 5.1)
+  sidekiq (~> 5.2)
   spring
   spring-watcher-listen (~> 2.0.0)
   turbolinks (~> 5)