diff --git a/Gemfile.lock b/Gemfile.lock
index 22307ad..d9c500d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -4,7 +4,8 @@ GEM
     activesupport (3.2.14)
       i18n (~> 0.6, >= 0.6.4)
       multi_json (~> 1.0)
-    addressable (2.3.6)
+    addressable (2.8.0)
+      public_suffix (>= 2.0.2, < 5.0)
     builder (3.2.2)
     commander (4.1.5)
       highline (~> 1.6.11)
@@ -51,6 +52,7 @@ GEM
       multi_json (~> 1.3)
       multi_xml (~> 0.5)
       rack (~> 1.2)
+    public_suffix (4.0.6)
     rack (1.5.2)
     rack-test (0.6.2)
       rack (>= 1.0)