diff --git a/website/Gemfile.lock b/website/Gemfile.lock
index f2f65c6fa..fcd4d6ee3 100644
--- a/website/Gemfile.lock
+++ b/website/Gemfile.lock
@@ -104,7 +104,7 @@ GEM
     mini_portile2 (2.3.0)
     minitest (5.11.3)
     multi_json (1.13.1)
-    nokogiri (1.8.2)
+    nokogiri (1.8.5)
       mini_portile2 (~> 2.3.0)
     padrino-helpers (0.12.9)
       i18n (~> 0.6, >= 0.6.7)