diff --git a/Gemfile b/Gemfile
index f1330f01c..5f8b0de2f 100644
--- a/Gemfile
+++ b/Gemfile
@@ -38,7 +38,7 @@ gem "simple_captcha2", "0.4.3", require: "simple_captcha"
 # Background processing
 
 gem "redis", "3.3.5" # Pinned to 3.3.x because of https://github.com/antirez/redis/issues/4272
-gem "sidekiq", "5.2.5"
+gem "sidekiq", "5.2.7"
 
 # Scheduled processing
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 1929865ed..81de66909 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -664,7 +664,7 @@ GEM
     shellany (0.0.1)
     shoulda-matchers (4.0.1)
       activesupport (>= 4.2.0)
-    sidekiq (5.2.5)
+    sidekiq (5.2.7)
       connection_pool (~> 2.2, >= 2.2.2)
       rack (>= 1.5.0)
       rack-protection (>= 1.5.0)
@@ -898,7 +898,7 @@ DEPENDENCIES
   sass-rails (= 5.0.7)
   secure_headers (= 6.1.0)
   shoulda-matchers (= 4.0.1)
-  sidekiq (= 5.2.5)
+  sidekiq (= 5.2.7)
   sidekiq-cron (= 1.1.0)
   simple_captcha2 (= 0.4.3)
   simplecov (= 0.16.1)