diff --git a/Gemfile b/Gemfile
index f1c93f93..00f727a5 100644
--- a/Gemfile
+++ b/Gemfile
@@ -97,7 +97,7 @@ gem 'builder'
 gem 'activeresource'
 gem 'geocoder'
 #gem 'dimensions'
-gem 'sidekiq', '~> 4.2'
+gem 'sidekiq', '~> 5.2'
 gem 'sidekiq-failures'
 gem 'sidekiq-history'
 gem 'sidekiq-status'
diff --git a/Gemfile.lock b/Gemfile.lock
index d0358a40..ace85eca 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -25,8 +25,17 @@ GIT
       railties (>= 3.2)
 
 GEM
-  remote: https://rubygems.org/
   remote: http://dream.misasa.okayama-u.ac.jp/rubygems/
+  specs:
+    acts_as_mappable (0.1.5)
+      actionpack (>= 6.1.0)
+      activerecord (>= 6.1.0)
+      railties (>= 6.1.0)
+    with_recursive (0.0.7)
+      activerecord (>= 6.1.0)
+
+GEM
+  remote: https://rubygems.org/
   specs:
     Ascii85 (1.1.0)
     actioncable (6.1.3.1)
@@ -100,10 +109,6 @@ GEM
       activerecord (>= 5.0, < 6.2)
     acts_as_list (1.0.3)
       activerecord (>= 4.2)
-    acts_as_mappable (0.1.5)
-      actionpack (>= 6.1.0)
-      activerecord (>= 6.1.0)
-      railties (>= 6.1.0)
     addressable (2.7.0)
       public_suffix (>= 2.0.2, < 5.0)
     afm (0.2.2)
@@ -176,8 +181,8 @@ GEM
     color_code (0.4.0)
     comma (4.5.0)
       activesupport (>= 4.2.0, < 6.2)
-    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)
@@ -413,7 +418,7 @@ GEM
     rblineprof (0.3.7)
       debugger-ruby_core_source (~> 1.3)
     rdoc (6.3.0)
-    redis (3.3.5)
+    redis (4.1.4)
     ref (2.0.0)
     regexp_parser (2.0.3)
     request_store (1.5.0)
@@ -470,11 +475,11 @@ GEM
     semantic_range (2.3.1)
     settingslogic (2.0.9)
     shellany (0.0.1)
-    sidekiq (4.2.10)
-      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 (~> 3.2, >= 3.2.1)
+      redis (>= 3.3.5, < 4.2)
     sidekiq-failures (1.0.0)
       sidekiq (>= 4.0.0)
     sidekiq-history (0.0.11)
@@ -565,8 +570,6 @@ GEM
     websocket-extensions (0.1.5)
     whenever (1.0.0)
       chronic (>= 0.6.3)
-    with_recursive (0.0.7)
-      activerecord (>= 6.1.0)
     xpath (3.2.0)
       nokogiri (~> 1.8)
     zeitwerk (2.4.2)
@@ -637,7 +640,7 @@ DEPENDENCIES
   sass-rails (~> 5.1)
   sdoc
   settingslogic
-  sidekiq (~> 4.2)
+  sidekiq (~> 5.2)
   sidekiq-failures
   sidekiq-history
   sidekiq-status