diff --git a/Gemfile.lock b/Gemfile.lock
index e03d635..dbfbcc9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -28,7 +28,8 @@ GEM
     activesupport (3.2.17)
       i18n (~> 0.6, >= 0.6.4)
       multi_json (~> 1.0)
-    addressable (2.3.2)
+    addressable (2.8.0)
+      public_suffix (>= 2.0.2, < 5.0)
     arel (3.0.3)
     bcrypt-ruby (3.0.1)
     builder (3.0.4)
@@ -184,6 +185,7 @@ GEM
     polyglot (0.3.5)
     prusswan-forem (0.0.2)
       rails (~> 3.2.7)
+    public_suffix (4.0.6)
     rack (1.4.7)
     rack-cache (1.9.0)
       rack (>= 0.4)