diff --git a/Gemfile.lock b/Gemfile.lock
index d7b8f53ae..92965d13a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -131,7 +131,7 @@ GEM
     metaclass (0.0.1)
     method_source (0.8.2)
     mime-types (1.25.1)
-    mini_portile (0.6.2)
+    mini_portile2 (2.1.0)
     mocha (0.14.0)
       metaclass (~> 0.0.1)
     multi_json (1.10.1)
@@ -142,8 +142,8 @@ GEM
     net-sftp (2.1.2)
       net-ssh (>= 2.6.5)
     net-ssh (2.9.2)
-    nokogiri (1.6.6.2)
-      mini_portile (~> 0.6.0)
+    nokogiri (1.6.8.1)
+      mini_portile2 (~> 2.1.0)
     open4 (1.3.0)
     pagerduty (2.0.0)
       json (>= 1.7.7)
diff --git a/backup.gemspec b/backup.gemspec
index 4e6f71a08..451c09848 100644
--- a/backup.gemspec
+++ b/backup.gemspec
@@ -76,7 +76,7 @@ Gem::Specification.new do |gem|
   gem.add_dependency 'net-scp', '= 1.2.1'
   gem.add_dependency 'net-sftp', '= 2.1.2'
   gem.add_dependency 'net-ssh', '= 2.9.2'
-  gem.add_dependency 'nokogiri', '= 1.6.6.2'
+  gem.add_dependency 'nokogiri', '= 1.6.8.1'
   gem.add_dependency 'open4', '= 1.3.0'
   gem.add_dependency 'pagerduty', '= 2.0.0'
   gem.add_dependency 'polyglot', '= 0.3.3'