diff --git a/Gemfile.lock b/Gemfile.lock
index 4959e6f2..a20eb28d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -23,7 +23,8 @@ GEM
       minitest (~> 5.1)
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
-    addressable (2.3.8)
+    addressable (2.8.0)
+      public_suffix (>= 2.0.2, < 5.0)
     byebug (3.5.1)
       columnize (~> 0.8)
       debugger-linecache (~> 1.2)
@@ -66,6 +67,7 @@ GEM
     pry-byebug (2.0.0)
       byebug (~> 3.4)
       pry (~> 0.10)
+    public_suffix (2.0.5)
     pusher (0.14.4)
       httpclient (~> 2.5)
       multi_json (~> 1.0)