diff --git a/Gemfile.lock b/Gemfile.lock
index d6e41be..c523f56 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -77,7 +77,8 @@ GEM
     activesupport (3.2.13)
       i18n (= 0.6.1)
       multi_json (~> 1.0)
-    addressable (2.3.2)
+    addressable (2.8.0)
+      public_suffix (>= 2.0.2, < 5.0)
     arbre (1.0.1)
       activesupport (>= 3.0.0)
     arel (3.0.2)
@@ -237,6 +238,7 @@ GEM
       slop (~> 3.3.1)
     pry-nav (0.2.3)
       pry (~> 0.9.10)
+    public_suffix (3.1.1)
     quiet_assets (1.0.2)
       railties (>= 3.1, < 5.0)
     rack (1.4.5)