diff --git a/Gemfile.lock b/Gemfile.lock
index c482fc4..3c8c558 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -33,7 +33,8 @@ GEM
     activesupport (3.2.14)
       i18n (~> 0.6, >= 0.6.4)
       multi_json (~> 1.0)
-    addressable (2.3.5)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     arel (3.0.2)
     builder (3.0.4)
     capybara (2.1.0)
@@ -75,6 +76,7 @@ GEM
     nokogiri (1.6.0)
       mini_portile (~> 0.5.0)
     polyglot (0.3.3)
+    public_suffix (5.0.0)
     rack (1.4.5)
     rack-cache (1.2)
       rack (>= 0.4)