diff --git a/sample/sinatra/Gemfile.lock b/sample/sinatra/Gemfile.lock
index 9d6b7a0..96029c4 100644
--- a/sample/sinatra/Gemfile.lock
+++ b/sample/sinatra/Gemfile.lock
@@ -21,8 +21,8 @@ GEM
     i18n (0.6.1)
     multi_json (1.7.2)
     oauth (0.4.7)
-    rack (1.5.2)
-    rack-protection (1.5.0)
+    rack (1.6.11)
+    rack-protection (1.5.5)
       rack
     rake (10.0.4)
     sinatra (1.4.2)