diff --git a/Gemfile.lock b/Gemfile.lock
index 3ee4bae..1115ab3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -77,10 +77,11 @@ GEM
     middleman-syntax (3.0.0)
       middleman-core (>= 3.2)
       rouge (~> 2.0)
-    mini_portile2 (2.1.0)
+    mini_portile2 (2.8.0)
     minitest (5.10.1)
-    nokogiri (1.6.8.1)
-      mini_portile2 (~> 2.1.0)
+    nokogiri (1.13.9)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     padrino-helpers (0.13.3.3)
       i18n (~> 0.6, >= 0.6.7)
       padrino-support (= 0.13.3.3)
@@ -89,6 +90,7 @@ GEM
       activesupport (>= 3.1)
     parallel (1.10.0)
     public_suffix (2.0.4)
+    racc (1.6.0)
     rack (1.6.5)
     rb-fsevent (0.9.8)
     rb-inotify (0.9.7)