diff --git a/Gemfile.lock b/Gemfile.lock
index 5df13233b4..f3eb65fa11 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -80,7 +80,7 @@ GEM
       nanoc (>= 3.1, < 5.0)
     nanoc-redirector (0.3.0)
       nanoc (~> 4.9.0)
-    nokogiri (1.8.4)
+    nokogiri (1.8.5)
       mini_portile2 (~> 2.3.0)
     parallel (1.12.1)
     pry (0.11.3)