diff --git a/Gemfile.lock b/Gemfile.lock
index ec1530a..d64318d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -58,7 +58,7 @@ GEM
       execjs
     coffee-script-source (1.12.2)
     concurrent-ruby (1.1.7)
-    connection_pool (2.2.2)
+    connection_pool (2.2.5)
     crass (1.0.6)
     database_cleaner (1.7.0)
     diff-lcs (1.3)
@@ -114,7 +114,9 @@ GEM
     marcel (0.3.3)
       mimemagic (~> 0.3.2)
     method_source (1.0.0)
-    mimemagic (0.3.5)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
     minitest (5.14.2)
@@ -130,8 +132,6 @@ GEM
     pundit (1.1.0)
       activesupport (>= 3.0.0)
     rack (2.2.3)
-    rack-protection (2.0.5)
-      rack
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails (5.2.4.4)
@@ -162,7 +162,7 @@ GEM
     rb-fsevent (0.10.3)
     rb-inotify (0.10.0)
       ffi (~> 1.0)
-    redis (4.1.0)
+    redis (4.5.1)
     rspec (3.8.0)
       rspec-core (~> 3.8.0)
       rspec-expectations (~> 3.8.0)
@@ -201,11 +201,10 @@ GEM
       sprockets (>= 2.8, < 4.0)
       sprockets-rails (>= 2.0, < 4.0)
       tilt (>= 1.1, < 3)
-    sidekiq (5.2.5)
-      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)
     spring (2.1.0)
     spring-watcher-listen (2.0.1)
       listen (>= 2.7, < 4.0)