diff --git a/Gemfile.lock b/Gemfile.lock
index 52f222fc7..66fc03724 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -449,8 +449,9 @@ GEM
       childprocess (~> 0.5)
       rubyzip (~> 1.2, >= 1.2.2)
     sexp_processor (4.11.0)
-    sidekiq (5.2.3)
+    sidekiq (5.2.5)
       connection_pool (~> 2.2, >= 2.2.2)
+      rack (>= 1.5.0)
       rack-protection (>= 1.5.0)
       redis (>= 3.3.5, < 5)
     simplecov (0.12.0)