diff --git a/Gemfile.lock b/Gemfile.lock
index f4f3d7c..3e674e1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -155,14 +155,16 @@ GEM
     mime-types (3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
-    mini_portile2 (2.1.0)
+    mini_portile2 (2.8.0)
     multi_json (1.12.1)
-    nokogiri (1.7.1)
-      mini_portile2 (~> 2.1.0)
+    nokogiri (1.13.6)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     parser (2.4.0.0)
       ast (~> 2.2)
     powerpack (0.1.1)
     puma (3.12.0)
+    racc (1.6.0)
     rack (1.6.5)
     rack-protection (1.5.3)
       rack