diff --git a/Gemfile.lock b/Gemfile.lock
index 04a9200..4876ef0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -59,10 +59,10 @@ GEM
     multi_json (1.3.6)
     pg (0.14.1)
     polyglot (0.3.3)
-    rack (1.4.1)
+    rack (1.4.7)
     rack-cache (1.2)
       rack (>= 0.4)
-    rack-protection (1.2.0)
+    rack-protection (1.5.5)
       rack
     rack-ssl (1.3.2)
       rack