diff --git a/Gemfile.lock b/Gemfile.lock
index d6e41be..4ba7e8d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -212,6 +212,7 @@ GEM
     metaclass (0.0.1)
     method_source (0.8.1)
     mime-types (1.21)
+    mini_portile2 (2.4.0)
     mocha (0.10.5)
       metaclass (~> 0.0.1)
     money (5.1.0)
@@ -219,7 +220,8 @@ GEM
     multi_json (1.7.1)
     multi_xml (0.5.1)
     newrelic_rpm (3.6.3.111)
-    nokogiri (1.5.6)
+    nokogiri (1.9.1)
+      mini_portile2 (~> 2.4.0)
     orm_adapter (0.4.0)
     paperclip (3.4.0)
       activemodel (>= 3.0.0)