diff --git a/Gemfile.lock b/Gemfile.lock
index bb5c130..13671ea 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    rack (1.6.4)
+    rack (1.6.13)
     rack-protection (1.5.3)
       rack
     redis (3.3.0)