diff --git a/Gemfile b/Gemfile
index 0e667f20..ba32c087 100644
--- a/Gemfile
+++ b/Gemfile
@@ -12,7 +12,7 @@ gem 'travis-rollout',    '~> 0.0.2'
 gem 'metriks',                 git: 'https://github.com/travis-ci/metriks'
 gem 'metriks-librato_metrics', git: 'https://github.com/travis-ci/metriks-librato_metrics'
 
-gem 'sidekiq',         '~> 4.0.0'
+gem 'sidekiq',         '~> 5.2.0'
 gem 'redis-namespace'
 gem 'sentry-raven'
 gem 'keen'
diff --git a/Gemfile.lock b/Gemfile.lock
index 8cd9eb27..7addca3c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1044,7 +1044,7 @@ GEM
       regexp_parser (~> 1.5)
       xpath (~> 3.2)
     coderay (1.1.3)
-    concurrent-ruby (1.1.7)
+    concurrent-ruby (1.1.9)
     connection_pool (2.2.3)
     crack (0.4.4)
     crass (1.0.6)
@@ -1123,6 +1123,8 @@ GEM
       method_source (~> 1.0)
     public_suffix (4.0.6)
     rack (2.2.3)
+    rack-protection (2.1.0)
+      rack
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails-dom-testing (2.0.3)
@@ -1140,7 +1142,7 @@ GEM
     rb-fsevent (0.10.4)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    redis (3.3.5)
+    redis (4.4.0)
     redis-namespace (1.8.0)
       redis (>= 3.0.4)
     regexp_parser (1.8.2)
@@ -1166,10 +1168,10 @@ GEM
     sentry-raven (3.1.1)
       faraday (>= 1.0)
     shellany (0.0.1)
-    sidekiq (4.0.2)
-      concurrent-ruby (~> 1.0)
-      connection_pool (~> 2.2, >= 2.2.0)
-      redis (~> 3.2, >= 3.2.1)
+    sidekiq (5.2.0)
+      connection_pool (~> 2.2, >= 2.2.2)
+      rack-protection (>= 1.5.0)
+      redis (>= 3.3.5, < 5)
     thor (1.0.1)
     thread_safe (0.3.6)
     travis-config (1.1.3)
@@ -1213,7 +1215,7 @@ DEPENDENCIES
   roadie-rails
   rspec
   sentry-raven
-  sidekiq (~> 4.0.0)
+  sidekiq (~> 5.2.0)
   travis-config (~> 1.1.0)
   travis-exceptions!
   travis-github_apps!