diff --git a/Gemfile.lock b/Gemfile.lock
index 8ced3297..7a418324 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -3,7 +3,7 @@ GEM
   specs:
     daemons (1.1.9)
     eventmachine (1.0.4)
-    rack (1.6.0)
+    rack (1.6.13)
     rack-protection (1.5.3)
       rack
     rake (10.4.2)