diff --git a/Gemfile.lock b/Gemfile.lock
index 31882b6..b46857c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -18,7 +18,8 @@ GEM
       minitest (~> 5.1)
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
-    addressable (2.4.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     backports (3.6.8)
     builder (3.2.2)
     busser (0.6.0)
@@ -114,6 +115,7 @@ GEM
       method_source (~> 0.8.1)
       slop (~> 3.4)
     psych (2.0.5)
+    public_suffix (5.0.0)
     puppet (3.8.5)
       facter (> 1.6, < 3)
       hiera (~> 1.0)