diff --git a/Gemfile.lock b/Gemfile.lock
index eca4ce3..749f312 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -24,22 +24,22 @@ GIT
 GEM
   remote: http://rubygems.org/
   specs:
-    async-rack (0.5.1)
-      rack (~> 1.1)
+    async-rack (0.4.0.1)
+      rack (>= 1.1.0)
     em-hiredis (0.1.0)
       hiredis (~> 0.3.0)
     eventmachine (1.0.0.beta.3)
     hiredis (0.3.2)
     http_parser.rb (0.5.1)
-    http_router (0.8.10)
+    http_router (0.8.11)
       rack (>= 1.0.0)
       url_mount (~> 0.2.1)
     log4r (1.1.9)
     multi_json (1.0.3)
-    rack (1.3.0)
+    rack (2.0.8)
     rack-accept-media-types (0.9)
-    rack-contrib (1.1.0)
-      rack (>= 0.9.1)
+    rack-contrib (2.1.0)
+      rack (~> 2.0)
     rack-respond_to (0.9.8)
       rack-accept-media-types (>= 0.6)
     url_mount (0.2.1)