diff --git a/Gemfile.lock b/Gemfile.lock
index 25a2752..dfc0105 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -28,7 +28,8 @@ GEM
     activesupport (3.2.5)
       i18n (~> 0.6)
       multi_json (~> 1.0)
-    addressable (2.3.2)
+    addressable (2.8.0)
+      public_suffix (>= 2.0.2, < 5.0)
     arel (3.0.2)
     builder (3.0.0)
     capybara (1.1.2)
@@ -82,6 +83,7 @@ GEM
     multi_json (1.3.6)
     nokogiri (1.5.5)
     polyglot (0.3.3)
+    public_suffix (4.0.6)
     rack (1.4.1)
     rack-cache (1.2)
       rack (>= 0.4)