diff --git a/Gemfile.lock b/Gemfile.lock
index 57e3e91..4b575f8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -64,7 +64,8 @@ GEM
       activerecord (>= 3.0)
     acts_as_tree (2.1.0)
       activerecord (>= 3.0.0)
-    addressable (2.3.6)
+    addressable (2.8.0)
+      public_suffix (>= 2.0.2, < 5.0)
     annotate (2.6.5)
       activerecord (>= 2.3.0)
       rake (>= 0.8.7)
@@ -216,6 +217,7 @@ GEM
     polyamorous (1.1.0)
       activerecord (>= 3.0)
     polyglot (0.3.5)
+    public_suffix (4.0.6)
     puma (2.9.1)
       rack (>= 1.1, < 2.0)
     quiet_assets (1.0.3)