diff --git a/Gemfile.lock b/Gemfile.lock
index ca7ebc94..a178d79e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -13,7 +13,8 @@ GEM
       i18n (~> 0.7)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.3.6)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     awesome_print (1.1.0)
     celluloid (0.16.0)
       timers (~> 4.0.0)
@@ -51,6 +52,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
       slop (~> 3.4)
+    public_suffix (5.0.0)
     rake (10.4.2)
     rb-fsevent (0.9.4)
     rb-inotify (0.9.5)