diff --git a/Gemfile.lock b/Gemfile.lock
index c3ba262326..5632a024ad 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,8 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.4.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     colorator (1.1.0)
     ffi (1.9.14)
     forwardable-extended (2.6.0)
@@ -28,6 +29,7 @@ GEM
     mercenary (0.3.6)
     pathutil (0.14.0)
       forwardable-extended (~> 2.6)
+    public_suffix (5.0.0)
     rb-fsevent (0.9.8)
     rb-inotify (0.9.7)
       ffi (>= 0.5.0)