diff --git a/Gemfile.lock b/Gemfile.lock
index 636f566..8423974 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,7 +7,8 @@ GEM
       minitest (~> 5.1)
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
-    addressable (2.4.0)
+    addressable (2.8.0)
+      public_suffix (>= 2.0.2, < 5.0)
     backports (3.6.8)
     bourbon (4.2.7)
       sass (~> 3.4)
@@ -92,6 +93,7 @@ GEM
       activesupport (>= 3.1)
     parallel (1.9.0)
     ptools (1.3.3)
+    public_suffix (4.0.6)
     rack (1.6.4)
     rb-fsevent (0.9.7)
     rb-inotify (0.9.7)