diff --git a/Gemfile.lock b/Gemfile.lock
index aba6974..5d40a6b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,8 @@
 GEM
   remote: http://rubygems.org/
   specs:
-    addressable (2.3.5)
+    addressable (2.8.0)
+      public_suffix (>= 2.0.2, < 5.0)
     ansi (1.4.3)
     builder (3.1.4)
     charlock_holmes (0.6.9.4)
@@ -49,6 +50,7 @@ GEM
       multi_json (~> 1.3)
       multi_xml (~> 0.5)
       rack (~> 1.2)
+    public_suffix (4.0.6)
     rack (1.5.2)
     rake (10.1.1)
     rdoc (4.1.1)