diff --git a/Gemfile.lock b/Gemfile.lock
index 4651845..64e40a9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -184,7 +184,7 @@ GEM
       sprockets-rails
       tilt
     semantic_range (3.0.0)
-    sidekiq (6.2.2)
+    sidekiq (6.4.0)
       connection_pool (>= 2.2.2)
       rack (~> 2.0)
       redis (>= 4.2.0)