diff --git a/Gemfile.lock b/Gemfile.lock
index ca064ac5..b3978007 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -43,7 +43,8 @@ GEM
       activemodel (= 3.0.19)
       activesupport (= 3.0.19)
     activesupport (3.0.19)
-    addressable (2.3.2)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     arel (2.0.10)
     builder (2.1.2)
     capistrano (2.6.0)
@@ -128,6 +129,7 @@ GEM
       activesupport (>= 2.3.2)
     pg (0.9.0)
     polyglot (0.3.3)
+    public_suffix (5.0.0)
     rack (1.2.6)
     rack-mount (0.6.14)
       rack (>= 1.0.0)