diff --git a/Gemfile.lock b/Gemfile.lock
index ea80102..fe257de 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -71,7 +71,7 @@ GEM
     nokogiri (1.6.5)
       mini_portile (~> 0.6.0)
     orm_adapter (0.5.0)
-    rack (1.6.0)
+    rack (1.6.13)
     rack-test (0.6.2)
       rack (>= 1.0)
     rails (4.2.0)