diff --git a/Gemfile b/Gemfile
index 7790349ff..29d1d7745 100644
--- a/Gemfile
+++ b/Gemfile
@@ -32,7 +32,7 @@ gem "simple_captcha2", "0.3.4", require: "simple_captcha"
 
 # Background processing
 
-gem "sidekiq", "3.3.2"
+gem "sidekiq", "3.3.3"
 gem "sinatra", "1.4.5"
 
 # Scheduled processing
diff --git a/Gemfile.lock b/Gemfile.lock
index 8e7bd1f1a..29730f859 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -125,7 +125,7 @@ GEM
       sass-rails (<= 5.0.1)
       sprockets (< 2.13)
     configurate (0.2.0)
-    connection_pool (2.1.1)
+    connection_pool (2.1.3)
     crack (0.4.2)
       safe_yaml (~> 1.0.0)
     cucumber (1.3.19)
@@ -619,7 +619,7 @@ GEM
     shellany (0.0.1)
     shoulda-matchers (2.8.0)
       activesupport (>= 3.0.0)
-    sidekiq (3.3.2)
+    sidekiq (3.3.3)
       celluloid (>= 0.16.0)
       connection_pool (>= 2.1.1)
       json
@@ -802,7 +802,7 @@ DEPENDENCIES
   sass-rails (= 5.0.1)
   selenium-webdriver (= 2.45.0)
   shoulda-matchers (= 2.8.0)
-  sidekiq (= 3.3.2)
+  sidekiq (= 3.3.3)
   sidetiq (= 0.6.3)
   simple_captcha2 (= 0.3.4)
   sinatra (= 1.4.5)