diff --git a/Gemfile.lock b/Gemfile.lock
index a418098a647..b37e4f9dc46 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -372,9 +372,9 @@ GEM
       activesupport (>= 3.1)
     shoulda-matchers (4.2.0)
       activesupport (>= 4.2.0)
-    sidekiq (6.0.4)
+    sidekiq (6.0.5)
       connection_pool (>= 2.2.2)
-      rack (>= 2.0.0)
+      rack (~> 2.0)
       rack-protection (>= 2.0.0)
       redis (>= 4.1.0)
     simplecov (0.18.2)