diff --git a/Gemfile.lock b/Gemfile.lock
index b45ab89b..2f7d3e35 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -301,7 +301,7 @@ GEM
       rack
       rake (>= 0.8.1)
     public_suffix (2.0.5)
-    rack (1.6.11)
+    rack (1.6.12)
     rack-protection (1.5.5)
       rack
     rack-test (0.6.3)