diff --git a/Gemfile.lock b/Gemfile.lock
index a3b61c1..84ed555 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -74,7 +74,7 @@ GEM
       execjs
     coffee-script-source (1.12.2)
     concurrent-ruby (1.1.5)
-    connection_pool (2.2.2)
+    connection_pool (2.2.5)
     crass (1.0.4)
     docile (1.3.1)
     domain_name (0.5.20180417)
@@ -112,7 +112,9 @@ GEM
     mime-types (3.2.2)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2018.0812)
-    mimemagic (0.3.2)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.1)
     mini_portile2 (2.4.0)
     mini_racer (0.2.5)
@@ -127,9 +129,7 @@ GEM
     pg (1.1.3)
     public_suffix (3.0.3)
     puma (3.12.0)
-    rack (2.0.7)
-    rack-protection (2.0.4)
-      rack
+    rack (2.2.3)
     rack-proxy (0.6.5)
       rack
     rack-test (1.1.0)
@@ -162,7 +162,7 @@ GEM
     rb-fsevent (0.10.3)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)
-    redis (3.3.5)
+    redis (4.5.1)
     regexp_parser (1.3.0)
     rest-client (2.0.2)
       http-cookie (>= 1.0.2, < 2.0)
@@ -184,10 +184,10 @@ GEM
     selenium-webdriver (3.141.0)
       childprocess (~> 0.5)
       rubyzip (~> 1.2, >= 1.2.2)
-    sidekiq (5.2.3)
-      connection_pool (~> 2.2, >= 2.2.2)
-      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)
     simplecov (0.16.1)
       docile (~> 1.1)
       json (>= 1.8, < 3)