diff --git a/Gemfile.lock b/Gemfile.lock
index 77241ae..2223e5c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -25,7 +25,8 @@ GEM
       multi_json (~> 1.3)
       thread_safe (~> 0.1)
       tzinfo (~> 0.3.37)
-    addressable (2.3.8)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     ansi (1.5.0)
     arel (4.0.2)
     bcrypt (3.1.10)
@@ -117,6 +118,7 @@ GEM
     nested_form (0.3.2)
     nokogiri (1.6.6.2)
       mini_portile (~> 0.6.0)
+    public_suffix (5.0.0)
     quiet_assets (1.1.0)
       railties (>= 3.1, < 5.0)
     rack (1.5.2)