diff --git a/Gemfile.lock b/Gemfile.lock
index d85cb11..6cffcb1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -28,7 +28,8 @@ GEM
     activesupport (3.2.7)
       i18n (~> 0.6)
       multi_json (~> 1.0)
-    addressable (2.3.2)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     annotate (2.5.0)
       rake
     arel (3.0.2)
@@ -91,6 +92,7 @@ GEM
     polyglot (0.3.3)
     powder (0.1.8)
       thor (>= 0.11.5)
+    public_suffix (5.0.0)
     rack (1.4.1)
     rack-cache (1.2)
       rack (>= 0.4)