diff --git a/Gemfile.lock b/Gemfile.lock
index 2a55b04..1d40755 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -125,7 +125,7 @@ GEM
     orm_adapter (0.5.0)
     pg (1.1.4)
     public_suffix (3.0.3)
-    rack (1.6.11)
+    rack (1.6.12)
     rack-pjax (1.1.0)
       nokogiri (~> 1.5)
       rack (>= 1.1)