diff --git a/Gemfile b/Gemfile
index c139d31..ddc12dd 100644
--- a/Gemfile
+++ b/Gemfile
@@ -6,7 +6,7 @@ gem "redis", "~> 3.3.3"
 gem 'hiredis', '~> 0.6.0'
 gem 'haml', '~> 4.0.6'
 gem 'json', '~> 2.1'
-gem 'sidekiq', '~> 5.0.4'
+gem 'sidekiq', '~> 5.1.0'
 gem 'mail', '~> 2.6.6'
 gem 'puma', '~> 3.9.1'
 gem 'newrelic_rpm', '~> 3.18.1'
diff --git a/Gemfile.lock b/Gemfile.lock
index d679555..e82851b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -51,12 +51,12 @@ GEM
       rack (>= 1.0)
     rack_csrf (2.6.0)
       rack (>= 1.1.0)
-    redis (3.3.3)
-    sidekiq (5.0.4)
+    redis (3.3.5)
+    sidekiq (5.1.0)
       concurrent-ruby (~> 1.0)
       connection_pool (~> 2.2, >= 2.2.0)
       rack-protection (>= 1.5.0)
-      redis (~> 3.3, >= 3.3.3)
+      redis (>= 3.3.4, < 5)
     sinatra (1.4.8)
       rack (~> 1.5)
       rack-protection (~> 1.4)
@@ -87,7 +87,7 @@ DEPENDENCIES
   rack-flash3 (~> 1.0.5)
   rack_csrf (~> 2.6.0)
   redis (~> 3.3.3)
-  sidekiq (~> 5.0.4)
+  sidekiq (~> 5.1.0)
   sinatra (~> 1.4.5)
   sinatra-contrib (~> 1.4.7)