diff --git a/Gemfile.lock b/Gemfile.lock
index c2265d3..5360d00 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)
     builder (3.2.2)
     diff-lcs (1.1.3)
     faraday (0.8.8)
@@ -40,6 +41,7 @@ GEM
       multi_json (~> 1.0)
       multi_xml (~> 0.5)
       rack (~> 1.2)
+    public_suffix (4.0.6)
     rack (1.5.2)
     rake (10.1.0)
     rdoc (4.0.1)