diff --git a/Gemfile.lock b/Gemfile.lock
index be4b26e..e0aaef0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -4,7 +4,8 @@ GEM
     activesupport (3.2.13)
       i18n (= 0.6.1)
       multi_json (~> 1.0)
-    addressable (2.3.6)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     builder (3.2.2)
     colorize (0.5.8)
     coveralls (0.6.7)
@@ -63,6 +64,7 @@ GEM
       multi_json (~> 1.3)
       multi_xml (~> 0.5)
       rack (~> 1.2)
+    public_suffix (5.0.0)
     rack (1.5.2)
     rake (0.9.6)
     rdoc (3.12.2)