diff --git a/Gemfile.lock b/Gemfile.lock
index 83be720..473797e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -30,7 +30,8 @@ GEM
     activesupport (3.2.22)
       i18n (~> 0.6, >= 0.6.4)
       multi_json (~> 1.0)
-    addressable (2.3.8)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     airbrake (3.1.17)
       builder
       multi_json
@@ -205,6 +206,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
       slop (~> 3.4)
+    public_suffix (3.1.1)
     puma (2.15.3)
     rack (1.4.7)
     rack-cache (1.5.1)