diff --git a/Gemfile.lock b/Gemfile.lock
index 1c28da1..8259aaa 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -17,7 +17,8 @@ GEM
       multi_json (~> 1.3)
       thread_safe (~> 0.1)
       tzinfo (~> 0.3.37)
-    addressable (2.3.5)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     atomic (1.1.14)
     builder (3.1.4)
     coderay (1.0.9)
@@ -56,6 +57,7 @@ GEM
       coderay (~> 1.0.5)
       method_source (~> 0.8)
       slop (~> 3.4)
+    public_suffix (5.0.0)
     rake (10.1.0)
     rb-fsevent (0.9.3)
     rb-inotify (0.9.2)