diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index 7341ecbe..c182d72a 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -62,7 +62,7 @@ GEM
     mini_magick (4.9.5)
     mini_portile2 (2.4.0)
     minitest (5.11.3)
-    nokogiri (1.10.3)
+    nokogiri (1.10.4)
       mini_portile2 (~> 2.4.0)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)