diff --git a/Gemfile.lock b/Gemfile.lock
index 7091a0e..95530ea 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)
     aws-sdk-v1 (1.64.0)
       json (~> 1.4)
       nokogiri (>= 1.4.4)
@@ -94,6 +95,7 @@ GEM
     parslet (1.5.0)
       blankslate (~> 2.0)
     posix-spawn (0.3.11)
+    public_suffix (4.0.6)
     pygments.rb (0.6.3)
       posix-spawn (~> 0.3.6)
       yajl-ruby (~> 1.2.0)