diff --git a/Gemfile.lock b/Gemfile.lock
index 58b1441a..bdc8a348 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -88,17 +88,19 @@ GEM
       middleman-core (~> 3.2)
       rouge (~> 1.0)
     mime-types (2.6.2)
-    mini_portile (0.6.2)
+    mini_portile2 (2.5.0)
     minitest (5.8.1)
     multi_json (1.11.2)
-    nokogiri (1.6.6.2)
-      mini_portile (~> 0.6.0)
+    nokogiri (1.11.2)
+      mini_portile2 (~> 2.5.0)
+      racc (~> 1.4)
     padrino-helpers (0.12.5)
       i18n (~> 0.6, >= 0.6.7)
       padrino-support (= 0.12.5)
       tilt (~> 1.4.1)
     padrino-support (0.12.5)
       activesupport (>= 3.1)
+    racc (1.5.2)
     rack (1.6.4)
     rack-test (0.6.3)
       rack (>= 1.0)