diff --git a/Gemfile.lock b/Gemfile.lock
index d7b8f53ae..8a28ca748 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,7 +2,8 @@ GEM
   remote: https://rubygems.org/
   specs:
     CFPropertyList (2.3.1)
-    addressable (2.3.5)
+    addressable (2.8.0)
+      public_suffix (>= 2.0.2, < 5.0)
     atomic (1.1.14)
     aws-ses (0.5.0)
       builder
@@ -152,6 +153,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
       slop (~> 3.4)
+    public_suffix (2.0.5)
     rb-fsevent (0.9.4)
     rb-inotify (0.9.3)
       ffi (>= 0.5.0)
diff --git a/backup.gemspec b/backup.gemspec
index 4e6f71a08..8c8755a31 100644
--- a/backup.gemspec
+++ b/backup.gemspec
@@ -27,7 +27,7 @@ Gem::Specification.new do |gem|
   # Gem Dependencies
   # Generated by `rake gemspec`. Do Not Edit.
   gem.add_dependency 'CFPropertyList', '= 2.3.1'
-  gem.add_dependency 'addressable', '= 2.3.5'
+  gem.add_dependency 'addressable', '= 2.8.0'
   gem.add_dependency 'atomic', '= 1.1.14'
   gem.add_dependency 'aws-ses', '= 0.5.0'
   gem.add_dependency 'buftok', '= 0.2.0'