diff --git a/Gemfile.lock b/Gemfile.lock
index ea8f37f..a9e5dd3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -54,7 +54,7 @@ GEM
     mime-types (1.17.2)
     multi_json (1.1.0)
     polyglot (0.3.3)
-    rack (1.4.1)
+    rack (1.4.7)
     rack-cache (1.2)
       rack (>= 0.4)
     rack-ssl (1.3.2)
@@ -101,6 +101,7 @@ GEM
       multi_json (>= 1.0.2)
 
 PLATFORMS
+  ruby
   x86-mingw32
 
 DEPENDENCIES