diff --git a/Gemfile.lock b/Gemfile.lock
index 85d99c2..76afb40 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -94,7 +94,7 @@ GEM
       slop (~> 3.4)
     pry-padrino (0.1.2)
       pry (>= 0.8)
-    rack (1.5.2)
+    rack (1.6.12)
     rack-protection (1.5.3)
       rack
     rack-test (0.6.2)