diff --git a/Gemfile.lock b/Gemfile.lock
index 090dab9..2c81802 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -27,7 +27,8 @@ GEM
       minitest (~> 5.1)
       thread_safe (~> 0.1)
       tzinfo (~> 1.1)
-    addressable (2.3.6)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     admin_view (0.3.0)
       kaminari (~> 0.15)
       rails (~> 4.0)
@@ -143,6 +144,7 @@ GEM
     polyamorous (1.0.0)
       activerecord (>= 3.0)
     polyglot (0.3.4)
+    public_suffix (5.0.0)
     rack (1.5.2)
     rack-test (0.6.2)
       rack (>= 1.0)