diff --git a/Gemfile.lock b/Gemfile.lock
index b78908c..f057e21 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -90,11 +90,12 @@ GEM
       sprockets-helpers (~> 1.1.0)
       sprockets-sass (~> 1.2.0)
     mime-types (2.2)
-    mini_portile (0.6.1)
+    mini_portile2 (2.8.0)
     minitest (5.4.3)
     multi_json (1.10.1)
-    nokogiri (1.6.4.1)
-      mini_portile (~> 0.6.0)
+    nokogiri (1.13.4)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     padrino-helpers (0.12.4)
       i18n (~> 0.6, >= 0.6.7)
       padrino-support (= 0.12.4)
@@ -102,6 +103,7 @@ GEM
     padrino-support (0.12.4)
       activesupport (>= 3.1)
     puma (3.12.2)
+    racc (1.6.0)
     rack (1.6.4)
     rack-livereload (0.3.15)
       rack