diff --git a/Gemfile.lock b/Gemfile.lock
index 990baf6..cbebbe9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,7 +2,8 @@ GEM
   remote: https://rubygems.org/
   specs:
     CFPropertyList (2.2.8)
-    addressable (2.4.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     backports (3.6.8)
     diff-lcs (1.2.5)
     docile (1.1.5)
@@ -54,6 +55,7 @@ GEM
     net-http-persistent (2.9.4)
     net-http-pipeline (1.0.1)
     netrc (0.11.0)
+    public_suffix (5.0.0)
     puppet (4.4.1)
       CFPropertyList (~> 2.2.6)
       facter (> 2.0, < 4)